Stephen Hales

It is hoped, that the Light given by these Researches, may be of use in skilful Hands, for regulating and adapting the due Proportions of the acid, and the oily Principles, to different Cases and Constitutions. This is the proper Province …

But whereas in some Cases, it is observed by Physicians to be too inflammatory, it is probable, that heating Quality, may in some Degree be abated, by making Tar-Water with the Strainer... without Stirring; thereby to divest the Water of a …

This Acid in Tar-water will curdle Milk; yet Turpentine-water will not... which shows that Tar is considerably acidulated, by the action of Fire in making.

Having procured some Norway or Swedish Tar which was thirty Years old... I, according to the Bishop's Prescription, made Tar-water in the proportion of a Gallon of Water to a Quart of Tar, stirring it four Minutes: I then took a Pint of …

As these Ventilators are like to prove of great Benefit to Mankind, in many other Respects than are here mentioned, or can as yet be thought of; so it will be of great use, if those who shall have made farther Improvements, will... …

He proposes by this means to cure intermitting Fevers, by having the Air in the Room rarefied in the cold Fit, and condensed in the hot Fit; during the whole time of which, the Patient is to continue therein: And recommends the use of it, …

And Mr. Triewald further says, that in the Summer of the Year 1742, be bad sent one of his Engines, calculated for a Sixty Gun Man of War, to France; which being approved of by the Royal Academy of Sciences at Paris, the King of France has …

This Treatise, he says, was read before the Royal Academy of Sweden the third day of April 1742. ...This was eleven Months after mine was laid before the Royal Society.

For this Engine [] had a Privilege for Life granted him by the King and Senate of Sweden, dated the 20th October 1741...

It were a very extraordinary Circumstance that two Persons at so great a Distance from each other, without getting a Hint of it one from the other, should happen to hit on inventing a like very useful Engine.

'Tis a good Symptom that we are got upon a right Scent, when it leads not only to the Thing first sought for; but also to many other useful Discoveries, as we see this does.

[It] is evident, not only from considering the Effects of the Engine, which exchanges great Quantities of bad, for good Air; but also from the Event it having been found very salutary by the Swedes who have made the Trial.

I find that a small Degree of Putrefaction in Water, kills Fish; but if, in order to prevent that Putrefacton, a few Drops of Spirit or Oil of Vitriol be dropped into the Water, then the Fish will live many Days in that Water.

The Reverend Dr. Colbatch... who some Years since desired me to attempt, to make Sea-Water wholesome, informs me that he had good Reason to believe that the Ingredient which Mr. Walcot put into Sea-Water, in order to make it wholesome, was …

I shall... give an Account of what has been formerly attempted for making Sea-Water drinkable, especially what was done by Mr. Walcot and Mr. Fitz-gerald in King Charles the Second's Time.

I was at first much discouraged, when I reflected on my Rashness, in venturing on an Undertaking, which had baffled the repeated Attempts of the best Philosophers and Chymists, both Ancient and Modern: In so much that they looked upon it …

the likeliest method to enable us to make the most judicious observations, and to put us upon the most probable means of improving any art, is to get the best insight we can into the nature and properties of those things which we are …

We have... many proofs of the great force with which plants and their several branches and leaves imbibe moisture, up their capillary sap vessels: The great influence the perspiring leaves have in this work...

The bodies which I distilled... (Fig. 38.) were Horn, calculus humanus, Oystershell, Oak, Mustard seed, Indian-wheat, se, Tobacco, oil of Anniseed, oil of Olives, Honey, Wax, Sugar, , , Earth, Walton Mineral, sea Salt, Salt-petre, Tartar, …

And in what proportion the recrementitious fluid is conveyed away, to make room for fresh supplies

have been chiefly owing to the statical examination of their fluids, viz. by enquiring what quantity of fluids, and solids dissolved into fluids, the animal daily takes in for its support and nourishment: And with what force and different …

the most considerable and rational accounts

if we reflect upon the discoveries