THE SUPPLEMENT To a Small TREATISE Called Salt-water SWEETNED: SHEWING The Great Advantages BOTH BY SEA and by LAND, OF SEA-WATER made FRESH.

TOGETHER With the Honourable Mr. BOYLE'S Letter, and the Appro­bation of the COLLEDGE of PHYSICIANS, of the Wholsomness of this WATER.

and also the CONDITIONS on which the PATENTEES and others concern'd, do intend to contract with such as shall please to deal with them for the Use of this IN­VENTION.

The Eighth Edition, July 23.

LONDON, Printed by John Harefinch in Mountague-Court.

TO THE KING'S Most Excellent Majesty.

SIR,

WHEN Mr. Boyle, with my Partners, and my self attended Your Majesty with the Experi­ment of Reducing Salt Water into Fresh; your Majesty seem'd so well pleased with an Invention of that Ʋni­versal Benefit, that We cannot but with our Humblest Duty, acknowledge your Gracious Reception of it; However, as your Great Wisdom and Judgment is not easie to be surpriz'd, and your Royal Approbation ne­ver known to be your hasty Act of Grace; [Page] your Favour and Patronage was not fully obtain'd, till with the strictest Scrutiny you had first examin'd those Hopes and Proba­bilities, you vouchsaf'd to incourage in Ʋs.

But, when upon further consideration, We had obviated all Difficulties, and solv'd all Objections against this Ʋndertaking, (which We hope will appear in this Printed Paper,) your Majesty was Graciously pleas'd to give us your Approbation, and to Order us your Letters Patents, which Grace and Favour, ought to be, and is receiv'd by Ʋs with the deepest sense of our humble Acknowledg­ments and Gratitude.

And if the Fruits of your Royal Grant has not hitherto been deriv'd to Ʋs, 'tis partly by some Obstacles we met from the suggestions of a private Person, but more especially by the late Horrid Conspiracy, when, not only our Loyal apprehensions for your Majesties Danger, diverted our Thoughts from all other Concerns, but like­wise we judged it a part of our Duty not to be pressing on your Majesties Goodness, or on your Ministers of State, in so Impor­tant a juncture of Affairs: But having now [Page] regained Leisure and Freedom after the dissipation of the greatest part of our Fears, We presume a second time to lay these En­deavours at your Feet, as best Entituled to the Patronage of so great an Ʋnderta­king by Your own Subjects, and best able to Recommend it to the World by your Royal Approbation.

This Experiment is in a great degree owing to the Eminent Mr. Boyle, and in­deed well worthy so Ingenious a Promoter, being so much the more the Favorite of his happy Genius, as it is Ʋniversally useful to Mankind; But whatever Advantages this Country, or indeed the World, may receive by it, his whole Ambition is bounded in the publick Profit, contenting himself with no other Benefit from it, than the satisfaction and pleasure of seeing it accomplish'd by his Friends.

The advantages in regard to Navigati­on, especially in long Voyages, which are subject (through often Calms, and on se­veral other accounts,) to distress for want of Water, and the Benefits to Sea-Towns, which are incommodated by Brackish Wa­ters, [Page] Together with the Easiness, Cheapness, and Wholesomness of this prepared Water, are the principal scope of these ensuing Pa­pers, which are Humbly Dedicated to your Majesties Perusal, Favour, and further Ap­probation, by

Your Majesties most Dutiful and Obedient Subject, R. FITZGERALD.

The fore-going Dedication, Humbly of­fered to His Majesty, having disco­vered the Intention of this Underta­king; it remains now to satisfie all Reasonable Scruples which have been raised concerning the Wholesomness and Cheapness of Water thus prepa­red.

The Queries and Answers follow.

Quest. 1. IF this Water can be made in suffici­ent quantities to serve the Ʋses of any Ship at Sea?

Ans. About Ninety Gallons may be Prepa­red in every Twenty four Hours by an Instru­ment of 33 Inches Diameter, which will stand under the Deck of any Ship; and it's computed that less than three Quarts is a good Allowance for any man in that time: And if a large Ship, wherein there are many men aboard, should require more Water, then two or more of the In­struments may be had upon reasonable Terms, and one man may attend several of them.

Quest. 2. In case the Operation be by Fire, it may require a Skilful Chymist, or one knowing in such Operations, to be on Board every Ship, who will require great Wages.

[Page 2] Ans. There will be no occasion for any such Person, for any Sea-man may be Instructed in an Hour or two to prepare this Water.

Quest. 3. It's probable that the Engine may be frequently out of Order, and being so at Sea, where Artificers and Tools are wanting to repair it, there must necessarily follow want of Water, which will be of Ill Consequence.

Ans. This Engine is of such Contrivance, that it's never likely to be out of Order.

Q. 4. Can this Engine be of use in Stormy-weather?

Ans. Since a sufficient quantity of Fresh-water may be so easily had by this Engine, the Ma­riners will be careful to make a good Provision of it before-hand; however 'tis not to be doubt­ed but it will answer the worst Accidents of the greatest Storms, and have its Effect sufficiently in the worst Weather, especially considering that in such desperate Extremities men must be content with smaller Allowances.

Quest. 5. The Operation being by Fire, it may endanger the Ship, and the Smoak be very offensive?

Ans. The Engine may easily be placed in any Ship without danger of Fire, or offence of Smoak.

Quest. 6. Will not the Charge of this Instru­ment and Materials belonging to it be very great?

Ans. It is difficult to make exact Answer to this, but an Instrument of the largest Size, with all the Materials belonging to it, will not amount to above 18 pound, and may last many years, [Page 3] and according to the Rates of Ships, they may be proportion'd both in Bulk and Price. And where it may be thought necessary to make use of this Experiment on Shore, for Brewing, or other uses of a Family, Instruments and Materi­als may be very large, and very much cheap­er on Shore, than at Sea.

Quest. 7. Will not the Fewel be very Charge­able, and take up much room in the Ship?

Ans. The quantity of about ninety Gallons of Water, may be prepared with less than three pecks of Coals, and proportionably with any other Fire; and the whole Room that will be taken up in the Fire, and in the few Casks to be imployed in the making and receiving this Water, will be less than the tenth part of Stow­age now employed for Water onely, and upon a strict Computation made by the Persons con­cern'd in this Grant, the whole charge of Water will come to less than an half penny per Gallon.

Quest. 8. Will not the Ingredients take up much Room, and be very Chargeable?

Ans. A Vessel less then a Barrel may contain enough of the Ingredients to carry a Ship to the East Indies and back again; and the Ingre­dients for near one hundred Gallons of this Sea-water will not amount to above 12 Pence, and will be cheaper when great quantities are used at Land.

[Page 4] Quest. 9. Admitting this Preparation of Water may be made, and in sufficient Quantities, it may be doubted whether it be wholsome?

Ans. The Famous Lord Bacon, having writ­ten learnedly of this Subject, had not the least thought that the Sea-Water, after it had been Dis-salted, without any Noxious addition, was Unwholesome: and it neither now is, nor ever was really doubted whether it were wholesome; However, because invidious Persons, who are no well-wishers to Ingenious Designs, may possibly raise Scruples, the Gentlemen who are concerned in this Grant, have purposely, to give Publick Satisfaction, sent a large quantity of this Water to Doctor King, a very Ingeni­ous Physician, who is a Member of the Colledge, and of the Royal Society; who finds,

1. That it is Lighter than most of the Wa­ters about the Town.

2. That it is without Sediment, and Trans­parent as any other Waters.

3. That it Lathers (as they call it) with Wash-Ball or Soap, better than other Water, and with less Soap.

4. That Sugar dissolveth sooner in it, than in other Water.

5. That it Evaporates sooner than common Water.

6. That whereas common Water Putrifies and yields a Stinking Smell within a few Weeks, [Page 5] this has continued Sweet and unaltered several Months, and may yet do so much longer, being still in as good condition as it was above Eight months ago, November the Fifteenth, 1683.

7. That it makes Gellies as firm and good as any Water.

8. That it Boils Pease to Tenderness, Beef, Mutton, Fish, and all other Meat, without giving it an ill Taste or Colour.

9. That it has no kind of ill Taste in it self, and Boils in Milk without Curdling.

10. That Flowers, Plants, and all Vegetables grow in it at least as well as any other Water.

11. And that small Animals live and grow in it.

Several men of great Quality, viz. The Earls of Shrowsbury, Westmorland, Mulgrave and Bur­lington, the Lord Dunbar, Lord Lumley, Lord Falconbridge, and Lord Chumley, besides very many Gentlemen of Quality, who frequently drink Water, Officers of Sea, and Physicians, have Drunk of this Water without being in the least indispos'd after it; but, lest any doubts may re­main after this, of the Salubrity of the said Wa­ter, the following Testimonial of these Learn­ed and Eminent Physicians is here inserted. And a further account of new Experiments, made by an ingenious Physician, is now at the end of this Treatise Printed.

The Approbation of the Colledge of Phy­sicians, and other Doctors of Physick, Practising in and about London.

WHereas we have received an account in a Gazet published some months since, that the Honourable Robert Fitz-Gerald, Esq hath found out the way and means of reducing Salt-water into Fresh, in quantities sufficient to serve Ships at Sea. And for as much as some Persons may possibly make a doubt, if the said Water be wholsome after the Salt is taken out of it. We therefore, considering of what gene­ral Advantage this useful Experiment may be, having fully inform'd our selves from Mr. Boyle, that the said Experiment is made by Fire. And having also seen an account of some Experi­ments made by some Members of our own Bo­dy, do declare our Opinion, that We believe the said Water is very wholesome, and may be safely used. And being further acquainted by the said Mr. Boyle, that the very few Ingre­dients made use of in the said Operation, are fixed in the Fire, and give no noxious qua­lity to the Water; We are therefore of Opi­nion that the same may be safely used, and is at least as healthy as any other Water us'd at [Page 7] Sea. All which we certifie (at the Request of the Honourable Robert Fitz-Gerald.)

  • D. Cox, President,
  • Sir C. Scarborough, Knt.
  • Dr. Daniel Whistler,
  • D. Weatherly,
  • Dr. Will. Denton,
  • Sir T. Millington Knt.
  • Dr. Walter Needham,
  • Dr. Thomas Short,
  • Dr. Thomas Allen,
  • Dr. Edmund Dickingson,
  • Dr. William Croone,
  • Dr. Richard Lower,
  • Dr. John Windebank,
  • Dr. Daniel Cox,
  • Dr. James Rufine,
  • Dr. Charles Conquest,
  • Dr. Edmund King,
  • Dr. Willowghby,
  • Dr. Tho. Sydenham,
  • Dr. Edward Tyson,
  • Dr. Nehemiah Grew,
  • Dr. David Abercromby,
  • Dr. Andrew Creagh.

Though Phsiyck has always flourished in this Kingdom, yet in this Age it is in greater Per­fection than ever; being improv'd, both as to the Practical and Speculative part, by the pre­sent Fellows of the Famous Colledge of Phy­sicians; who, being Men of great Practise and Eminent Learning, cannot but give full satisfaction to all such as inquire concerning the healthfulness of this Water; Their Opi­nion being, in this particular, the more valu­ [...]ble, because it is to their own Disadvantage; [...]nce the Brackish Waters of the Sea-Coast, and the putrifying Waters made use of at Sea, might probably have afforded them a [...] [Page 8] number of Patients, which may hereafter be lessened by the use of this wholesome Water.

Since the first Edition of these Papers, his Majesty has been pleas'd to see some Experi­ments, which has so convinc'd his Majesty of the healthfulness of this Water, that he has resolved to have it generally made use of in his Sea-Port Garrisons; of which an account has been given in several Gazetts, by His Ma­jesties special Order.

The Benefits and Advantages of Sea-Water made Fresh.

MUch Stowage will be saved, so that a Ship of 50 or 60 Tun, and proportio­nably of greater Bulk, may take in several Tuns of Goods more than formerly they used to car­ry; which will considerably advance the Trade of all Merchants, and be of vast profit to the Masters or Owners of Ships.

The Charge of Casks is very considerable, especially when bound with Iron, as all Sea-Casks must be; And by means of this Engine, three fourths of that charge will be saved.

The tear and wear of Boats often going from Ship-board, and frequent loss of the Boats and men in Stormy Weather, and the Op­ [...]nity of the Sea-mens being Drunk or [Page 9] shoar; by which many fatal accidents do hap­pen, (by means of having this Water-Engine) will be prevented.

Ships in long Voyages have been forc'd to run many Leagues from their intended course, which much retards their Voyage, and makes them lose fair Winds, and maintain more Sea-men at charges of Diet and Wages than they have occasion for; which inconveniencies may be prevented by having Water within themselves.

Ships are often forc'd to leave their Anchors and Cables behind them, by being forc'd in­to dangerous Shoars upon account of taking in Fresh Water.

In the African, East and West India Voyages, great quantities of Fresh Water are necessary, which the Sea-men are forc'd to put above Deck for want of room, which is great hin­drance to a Ships Sailing, and much endangers and weakens a Ship.

In case of Calms, which often happen in the narrow Seas, but especially near the Line, this Instrument will be of vast advantage, by af­fording fresh and wholsome Water, instead of that which is unwholsome and offensive.

Essex, Kent, and all other the Sea-Coasts, in any part of the World, that want wholesome Water, may be easily and cheaply supplied by this means; as also Venus [...] [Page 10] Windam, and all other Towns or Places that lye near the Sea, and either want good, or have Brackish Water.

In time of War, whole Navies may be re­lieved by this Engine, and Opportunity gi­ven of making the greatest Discoveries imagi­nable.

It is further to be considered, that hitherto the richest and ablest bodied Sea-men have been averse from undertaking long Voyages, by reason of endangering their Healths, and Lives, by making use of putrified Water, which inconvenience is not now to be feared, their be­ing such useful hopes of Fresh Water by the use of this Engine; and possibly a smaller num­ber of men may serve the use of Ships than do at present, by which much Charges will be saved to the Masters and Owners of Ships; and Merchants may Trade upon easier Terms.

In Portsmouth, Rochester, the Fenns of Lin­colnshire, and any other places near the Sea, where Waters are Brackish, and consequently unwholsome, this Engine, &c. may be very useful, and where there is room enough to place it, very great quantities of Water may be had for the use of whole Families, and the Ingredients when used in great quantities may be afforded at a cheaper Rate.

A LETTER of Mr. BOYLE's to the Learned Dr. JOHN BEALE, Fellow of the Royal So­ciety, concerning Fresh-water made out of Sea-water: Printed at the desire of the Patentees.

SIR,

TO give you a short Account (suitable to the little time I have to do it in,) of the Transaction, which I suppose must have given the rise to the Mention made of my Name in the publick Gazette,: I must inform you, that one of my nearest Relations, (Captain Fitz-Gerald,) and some other Worthy Gentlemen, having ac­quainted his Majesty, that They had an Invention for making Sea-water sweet and wholsom in great quantity, and with small Charge, and that I had examin'd, and did approve the Water so prepar'd; His Majesty was pleas'd with very Gracious Ex­pressions, to command Me to attend him with a further and more particular Information. Ha­ving readily obey'd this Order, and been made ac­quainted with the Objections the King thought fit to make against the Practicableness of the Inven­tion; which, (tho a private Man had urg'd them,) I should think the most Judicious that have been fram'd against it; I humbly presented to him, that I look't upon this Invention as Comprizing two differing things; a Mechanical part, which related to the Engine it self, and the use of it a Ship-board▪ and a Physical part which [...] [Page 12] the Potableness and Wholsomness of the Liquour. About the former of these I did not pretend to clear the Difficulties, especially such strong ones, as His Majesty had propos'd; but left it to the Paten­tees to give him Satisfaction, which they were in a readiness to offer. But as to the Wholsomness of the prepar'd Water, I had made some Tryals upon the Liquour, which gave me no just Grounds of su­specting it to be unwholsom, but several Motives to believe it well condition'd, and of great use to Na­vigators, and not to them only. And having here­upon briefly acquainted His Majesty with the chief Tryals I had made to examin this Sweetned Wa­ter, He was pleas'd to look upon them as Satisfacto­ry, and vouchsafed on that occasion to Discourse as a Virtuoso, of the Sea and Brackish-waters, and gave me some new, as well instructive Observations about them: and in conclusion, dismiss'd the Patentees with a Gracious Promise of his Royal Protection, and peculiar Favour.

To this short Narrative it now remains, that I briefly Subjoyn the chief things that perswaded me of the Salubrity of this Water, (whence may be justly and easily inferr'd, the Ʋtility the Publick may receive by a cheap and easie way of preparing it.) First, then I consider'd that almost all the Rain-water that falls from the Clouds on the Main Oce­an, and which (except perhaps in very few Places in Torrid Climates) is unquestionably receiv'd as wholsom, must be afforded by the Sea, and conse­quently [Page 13] be but Sea-water freed from its Salt, (ac­cording to the famous Motto, Redit Agmine dulci.) Next I found, (as his Majesty himself had done,) that the Liquour was well tasted, and without any sensible Brackishness; and some of it continued for between 4 or 5 Months in a large Christal Bottle, that I purposely kept unstopt, and for the most part in a South Window, where it neither did, nor probably in a long time, will putrifie, or so much as appear troubled or less transparent; during which time, it was with Approbation tasted and smell'd by several Learned Physicians of the famous Colledge of London. Thirdly, I found it laver very well, which most Pump-waters, and many o­thers that have some little (tho unperceiv'd) com­mon Salt in them, will not do. Fourthly, this Wa­ter will boyl Pease tender, which amongst Sea­men is one of the principal signs of good Water. Fifthly, In very good Ballances, with an Instrument that I purposely caus'd to be made for the nice weighing of Liquours, I found this Water far less heavy than one would expect; for if it differ'd at all in weight from the like quantity of undistill'd Water, (I speak with an If, because it is far more difficult to be exact in such nice Tryals, than the unpractic'd will imagine) the difference was not considerable, being but one part in 400, and that dif­ference is very small in comparison of that which Navigators and learned Authors relate to be ob­servable in natural Waters, all of them good [...] [Page 14] potable: I might tell you on this Occasion, that the last Great Duke of Tuscany, who was an Emi­nent Virtuoso, and the Patron of the celebrated Academy of the Lyncean Philosophers, is af­firm'd, among other prudent Courses that he took for his Health, whereof he was very Sollicitous, to have constantly made use of distill'd Water, when he us'd any Water, for his own Drinking. And I could add other things favourable enough to the Patentees Water, if Haste, and perhaps Discre­tion too, did not oblige me to leave them yet un­mention'd, that I might now have time to say some­what of the main thing of all that convinced me of the Saltlessness of the Water I speak of. I consi­der'd then, Sixthly, that the thing that was aim'd at by those ingenious men, that at differing times, and in several Countries have attempted to make Sea-water sweet, and the thing that was requir'd by proposing Recompences, or otherwise to encou­rage the Makers of such Attempts, was to free the Sea-water from the Brackishness without any noxi­ous Additament: so that on all sides it was taken for granted, that the only thing that kept the Sea-water from being safely Potable, was its Brackishness From which reflection it was natural for Me to infer a Conclusion very favourable to our prepar'd Water. For having long since written a short Dis­course of the Saltness of the Sea; I had been in dustrious to devise ways of comparing Waters [...]. And by these I found th [...] [Page 15] Patentees water to be more free from Common-salt, than Waters that are usually drunk here in London, of which I remember I shewed those Gentlemen an experiment that surpriz'd, as well as convinc'd them. And that which more satisfi'd me my self, was a Tryal that I carefully made by a way which having men­tion'd, but not yet (for want of opportunity) disclos'd to His Majesty, the Respect I owe Him forbids me to impart without His leave: On which account I hope you'll be content to be at present assur'd of these two Things; One, that by this way of Tryal, I found▪ (what possibly you will think strange;) that if there were in Water, so much as one Grain of Salt, in above two Ounces of Water, I could readily disco­ver it: The other, that even by this critical Exa­men, I could not detect so much as a thousandth par [...] of Salt in Our Prepar'd Water; whereas I found by Tryals purposely and carefully made, that ou [...] English Sea-water contain'd a 44, or 45th par [...] of good dry Salt; or, which is all one, that 44 Pints or near so many Pounds of Marine Water, woul [...] yield about one Pound of dry Common-Salt.

Thus Sir, you have a short and Art-less Account such as my haste will permit, and the nature of th [...] Subject requires, of my part in promoting this profitable Invention; to which I own my self a grea [...] well-wisher, not out of any private Interest (th [...] that was obligingly proffer'd me by the Patentees but as I think the bringing it into general us [...] may prove a real Service to Mankind, upon th [...] [Page 16] Score of divers Ʋtilities and Advantages, which yet, (tho I had leisure,) I should think very need­less to enumerate to so discerning a Person as Dr. B. to whom I shall therefore hasten to subscribe my self,

SIR,
A very Affectionate Friend, and Humble Servant, R. BOYLE.

AFter so many forcible and convincing Te­stimonies in favour of this great Design, I shall make an Addition of the Approbation of His Majesty of Great Brittain; who, after the publication of the first Impression, having seen the convincing Proofs of the healthful Quality of this Water, hath resolv'd to have the same to be made use of in all his Sea-Port Garisons; The which he caused to be published by ex­press Order, in several Gazetts, and particular­ [...]y in that of Munday, Novemb. 5. 1683.

An ABSTRACT out of the Gazette, Numb. 1676.

HIS Majesty was pleas'd to Command the Ho­nourable Mr. Boyle to attend Him, White-Hall Novemb. 2. 1683. to give His Majesty an Ocular Proof of the Nicety of his way of examining the freshness and saltness of Water, and to apply it to the Sea-Water, prepar'd according to the Patentees Invention; which being done before his Majesty, his Royal Highness, and the Duke of Grafton, several Persons of Quality being also present, it was made apparent, by a certain prepar'd Liquid which Mr. Boyle had brought with him, that a Discovery could be made if there were so much as a thousandth part of Salt in a pro­pos'd Water: By which Tryal His Majesty, finding that the Prepar'd Sea-Water, for which he has granted his Royal Patent, was at least as free from Salt as the best Waters used in this Town: received such Satisfaction as to the wholsomness of the said Water, that He was pleased to declare his Royal Intentions both to encourage the said Invention, and to have the said Water made use of in his seve­ral Maritime Garrisons, which Nature has not furnished with wholsom Water.

A Copy of a Letter from Captain Macdonnel, from aboard his Majesties Ship the Grey­hound, near the Coast of Spain, to one of the Patentees of Sea-Water.

SIR,

FOR these Four Months past, I kept your Sea-Water (for its better Tryal) Buried in my Ships Hold, where, had it not been extraordinary good, it must infal­libly have been of no use, and offensive, but I'll assure you it prov'd quite contrary; for yesterday, having several both of Sea and Land Officers on board of me, I made them insensibly taste of your Water, which I pre­tended to be from a Spring I watered my Ship at, Ten Leagues to the Southward of Sallie; they all affirm'd it to be as good as Tangier Water, the very best counted in the Streights, but when I discovered the Water to be yours, they hardly would give it Credit, and approv'd of it (as really it is, as good as can be drank) which they desi­red me to let you know.

I am
Your Humble Servant
Novemb. 3. 1683.

The Extremity of the last Winter having occasioned the loss of the President, a Rich East-India Ship, and many o­ther of His Majesties Ships and Subjects to perish for want of Provision and Fresh-Water at Sea, His Majesty, for pre­vention of the like Misfortune, was pleased to Order the follow­ing Advice to be inserted in the Gazette of March 6. 1683.

White-Hall, Feb. 28.

HIS Majesty having heard several Rela­tions of the great Distress some of his Subjects have lately been in at Sea for want of fresh Water, hath been pleased for their Re­lief in such Cases, to command the Patentees for the new Invention of making Sea-water Fresh, to give the most publick notice they can of the Usefulness of the said Invention, of which his Majesty has received so great satis­faction, that his Majesty is pleased that those Instruments shall be provided for his Ships and Garrisons, where they are not naturally provided with good Water. And in obedi­ence to His Majesties Order, the Patentees do hereby give notice, That two Treatises have been written on this subject, which may be had at the Ship against the Royal Exchange, and at the Marine Coffee-house, whereunto all Persons are referred for more particular In­formation; in which the great benefit and many Conveniences of this Invention, the ea­siness, both as to the Trouble and Expence, of making the Salt. Water fresh, and the Wholsomness thereof, is clearly demonstra­ted by the Testimony of many Eminent Phy­sicians. To which is added a Letter written by the Honourable Mr. Boyle, by which he [Page 21] assures the Whollomness, Durableness, and Sweetness of this Water. And a Letter from Captain Rand. Macdonnel, of the third of No­vember 1683. from on Board the Grey-hound Frigat, near the Coast of Spain; wherein he affirms, that he kept of the Patentees Water, some that was given him, in his Ships Hold, from his leaving England, being four Months, and then having several Officers on Board him, gave them a taste of it, pretending it to be of the Spring near Sally, where he had watered, and which is as good as the best in the Streights, and they drank of it as such, till he discovered what it was; and then they approved of it to be as good as could be drank.

FINIS.

The Conditions upon which the Patentees for making Salt or Brackish Water Fresh and Wholsom, do intend to con­clude with such Persons that shall please to agree with them for the Ʋse of this Invention either by Sea or Land.

FIRST, Every Person desiring to deal with the said Patentees, may have one Engine or more, with its Appendan­ [...]es, together with Directions how to manage and place the same, paying for each Engine and its Appendances, that will make about Ninety Gallons of Water fresh in Twenty four Hours, the Sum of Eighteen Pounds.

Every one buying an Engine, is also to buy as much of the Ingredients for this Ope­ration as will keep the same going at least six [Page 2] Months, at the Rate of one Shilling for as much as makes about ninety Gallons of Wa­ter.

Every one dealing for an Engine, and the quantity of Ingredients aforesaid, is to enter into Covenants with the Patentees by Arti­cles indented under Hand and Seal, as fol­loweth;

First, That he shall not sell or dis­pose of the said Engine or Ingredients, without License first had from the Pa­tentees, under their Hands and Seals.

Secondly, That he shall not use, nor suffer the said Engine or Ingredients to be used on Shore, without License from the Patentees, neither shall he directly or indirectly make, cause, or suffer to be made, any Engine in imitation of that of the Patentees, nor shall use any other Engine or Ingredients than what he shall buy of the Patentees, during the Grant of His Majesty to the said Patentees, without their License in Wri­ting, under their Hands and Seals.

[Page 3] Thirdly, That when he hath expen­ded the Quantity of Ingredients first bought, he will from time to time buy a like Quantity from the said Paten­tees, which they will be obliged to af­ford at the like Rate.

Fourthly, That he will pay unto the said Patentees, as a Praemium for their Invention of this Beneficial Art, six pence the Tun yearly, for the Tunnage of every Ship, in which they shall carry an Engine, the one Moiety in hand, on the delivery of the Engine, and the other at six Months after.

Fifthly, If any one sells his Ship, or Interest in such Ship, and desires to be discharged of the afore-mentioned Covenants, bringing the Buyer, or some for him, to the Patentees Office, and procuring him or some for him to enter into Articles of the like tenor, his Arti­cles shall be delivered up cancell'd.

If any one after the first Voyage shall not think it convenient to use the said Engine [Page 4] and Ingredients, returning to the Patentees, at the Office, their Engine and Appendances, with the Remainder of the Ingredients, not being damnified, he shall be discharged of the above Covenants, and repay'd the Moie­ty of the Money first paid for the Engines and Appendances, and also one Moiety according to the quantity of Ingredients returned as above.

If any Engine and Ingredients be used on Shore, the Praemium for each Engine shall be proportionably cheap, with respect to the ad­vantages, the Parties agreeing with the Pa­tentees may have by it, and they shall also covenant, not to use, or suffer to be used the said Engine and Ingredients on Ship-board, without Licence from the Patentees.

Upon these Conditions, the Engine and Ingredients (which may be carried either by Sea or Land) together with the Directi­ons for the Use thereof, shall be ready from and after the Twentieth day of August next, at the Patentees Office, kept in Lothbury, near the Royal Exchange, which will alwayes be open from Ten of the Clock in the Morning till One. And all Persons who are willing to agree upon these Terms, may be plea­sed to subscribe their Names, or to order some one for them to accept of these Condi­tions, for which Books shall be always ready [Page 5] at the said Office in Lothbury, and at Mr. John Gandy's, at the Sign of the Ship over against the Royal Exchange.

All the above Charges, together with the Price of Firing, and the Interest of the first cost of the Engine and its Appendances, as also the Praemium being duely computed, the Water notwithstanding will come under one half penny the Gallon, and the room which the Fewel takes up for Stowage, and the few Casks to be employed in the making and receiving this Prepared Water, will be less than the Vid. Dr. Grew's Treatise, called New Experiments, fol. 14. tenth part of the Stowage now em­ploy'd for Water only.

All Persons desirous to deal with the Pa­tentees, whose Occasions will not permit them to come to London, shall have the Agreements which are to be signed, sent to such conveni­ent Places as the said Parties shall desire, which they may communicate to the Paten­tees by Letters to their Office in Lothbury.

All Parties who please to be further infor­med of the great Advantages they may re­ceive by this Invention, (both as to Health and Profit) may have delivered to them two Treatises written on this Subject in most Languages now used, at the Patentees Office in Lothbury, or at the Ship in Cornhil, over against the Royal Exchange, London.

July 2. 1684.

THis Paper was agreed to, and ordered to be Printed and Published, by the Pa­tentees, and others concern'd.

  • The Earl of Berkeley.
  • Lord Viscount Falkland.
  • R. Fitzgerald.
  • Nat. Johnson.
  • Theo. Oglethorpe.
  • Tho. Maule.
  • W. Bridgeman.
  • P. Trant.
  • George Doddington.

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