| Description | ' An Experiment of the Refraction of Ice, was made by Mr Hook, and an Account of it by him given in writing, which was read, and Ordered to be entred. He was desired, to try it next day with a Glasse of the same Figures, with the peice of Ice, which he used in the Experiment of this day.
The force of falling bodyes was tryed again, and one ounce falling at the distance of lesse then halfe an inch, and somewhat more thaen ¼ of an Inch, moved 4 ounces: the same weight of 1 ounce, at the distance of ¾ inch, moved 8 ounces: at the distance of 1 ¼ moved 16 ounces: at the distance of about 1 1/8 did the same; at the distance of 3 inches, it moved 32 ounces: at the distance of 4 inches it moved 64 ounces: and at 3 inches and a little more, did the same.
Mr Hook was ordered to try this by himselfe at home, as exactly as may be, and bring in a written Account of it, next day.
Dr Merritt shewed the Company a glasse-Cane wherein Oyle of Vitrioll was frozen, and contracted into a lesser room.
The same affirmed that he had seen Eggs frozen yolk and all, without the Shell broken.
He did also produce a Gourd, and a little Vessell of Box-wood, both burst with freezing. He added, that Latten will also burst with freezing
Some live Coales and a Chick were shut up in a Glasse; the Chick, after it had been kept in it, 2 ¾ minutes, was taken out alive and well; but the Coales were extin-guished, about a minute afore.
There was Read a Letter of Sir William Petty's to my Lord Brouncker, relating the further Success of his Invention; And Mr Graunt told the Company, that in a Letter to him from the Same person, it was mentioned that his ship did goe as near the winde, as by Dr Wren's brasse Instrument was possible.
Ordered, that the Secreatary write in his own name a letter to Monsr. Hevelius, at Danzick, to assure him of the esteem the Society hath of his merits, whereof he hath given such Demonstrations to the learned world, by his published Books.
Dr Pope was ordered, to recommend to Dr Wren, from the Society, the continuance of the Observations of the Exlipses of Jupiter;s Satellites : and himselfe, together with Mr Ball and Mr Hook, were desired to joyne in the same work.
Dr Croon was desired to try, whether Eggshells attract the Tartarous part of Wine.
The Experiment, of the Mercuriall canes adhering to the finger, according to Monsr. Zulichem's way, referred to Dr Goddard, to be made next meeting.
The Experiment of respiration in warme water, was made, The Operator repired 36 times in 1m 52'' : Mr Hook 24 or 25 times in 1m 50''.
Mr Hook propsed for next day, the Celerity of falling bodyes.
The Eclipse of the Moon, of Febr: 12. to be observed by as many, as have conveniency. '
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