The supplement to a small treatise called Salt-water sweetned shewing the great advantages both by sea and 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 his invention.

The Conditions upon which the Patentees for making Salt or Brackish Water Fresh and Wholsom, do intend to con∣clude 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 Ope∣ration as will keep the same going at least six

Months, at the Rate of one Shilling for as much as makes about ninety Gallons of Wa∣ter.

Every one dealing for an Engine, and the quantity of Ingredients aforesaid, is to enter into Covenants with the Patentees by Arti∣cles indented under Hand and Seal, as fol∣loweth;

First, That he shall not sell or dis∣pose of the said Engine or Ingredients, without License first had from the Pa∣tentees, 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 Wri∣ting, under their Hands and Seals.

Thirdly, That when he hath expen∣ded the Quantity of Ingredients first bought, he will from time to time buy a like Quantity from the said Paten∣tees, which they will be obliged to af∣ford 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 Arti∣cles shall be delivered up cancell'd.

If any one after the first Voyage shall not think it convenient to use the said Engine

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 Moie∣ty 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 ad∣vantages, the Parties agreeing with the Pa∣tentees 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 Directi∣ons 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 plea∣sed to subscribe their Names, or to order some one for them to accept of these Condi∣tions, for which Books shall be always ready

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* 1.1 tenth part of the Stowage now em∣ploy'd for Water only.

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

All Parties who please to be further infor∣med of the great Advantages they may re∣ceive 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.

Notes

• * 1.1

  Vid. Dr. Grew's Treatise, called New Experiments, fol. 14.