Hooke Folio
firstlastpreviousnextimagebothHome

94

comunication with the produced air. for being putt Lower it went out Immediately vpon seuerall tryalls
It was obserued that the Candle being gone out neer the orifice, it would catch the flame again when has-
tily drawn vp close to the top. Besides it was taken notice of that when this factitious air was driuen out
of the vessell, the flaming candle held ouer it was presently blown out by it. [Mr Templer a bed of Amethist
Capn Bertaes siluer ore from Swethland. Lister obseruations prodigies &c.
[In margin]34.   Iune 4. the Curator made an Expt. with air produced out of Bottle ale putting it into a glasse vessell to
see whether & how long a candle would burne in it and twas found it would noe more burn in this air then
it did in air generated out of aq: fortis & Powdered oyster shells --- It was proposed that something might be
thought vpon for correcting this air soe as to make a candle burne in it or an animall liue in it.
The Curator said he would Consider of it, and try whether it might be corrected by procipitation
[of the french Stiptick liquor [abt. S S morelands ship pump. & a way of weighing anchors. Grew of firr pores &c.
[In margin]36.   Iune: 11. Grew microscopick pores of seuerall woods. &c. about stiptick liquor &c
Iune 18. mr Boyles Penetrant liquor & mor Denys Styptick liquor. -
[In margin]39.   Octob: 30 Mr Hooke being calld vpon for Expt. & particularly concerning the weather clock said that he
would prepare some experiments for the next week and take care of having the weather clock made as
also of finishing his Discourse vpon the same. [Lambs teeth stained [Hoboken de secundina human &c
answers to quarys about Feroe [news of Huelius his Machine colestis pars prior. [Listers steptick liquor
one Liuing without foode. -
[In margin]40.   Nouemb: 6. Boyle of effluuians -- The curator shewd an expt. of water spreading into it self by a peculiar contriuance
of a pipe into a canopy (not a Parabola as is the ordinary way) and reuerting into the perpendicular whence it came
He ascribed this figure to the Waters tenacity. Sr. W Petty was of opinion that the first impetus of the Sallying Water being
too strong for the pressure of the ambient, spread it self abroad in that figure of a Canopy but that afterwards the
first impetus being abated, the ambient was able by its pressure to make the water returne to its first perpendicular
- [quick silver vnalterd by keeping Stafford needham Petty. Swamerdams answer.    The Society Designe Return to Gresham
[In margin]42   Nou. 13 Boyles tracts presented. -- The Curator was calld vpon for his account concerning his expt. made Nou. 8. of
water spreading it Self into a canopy and Reverting to the Perpendicular. He excused himself that he had not been able to make
it Ready. He was desired to prepare it for the next Day. --- The same shewed an Expt. concerning the Springinesse
of Glasse by applying to a slender Glasse pipe a wax light in all the sides thereof. by which it appeared that the light being
held on the top of the pipe, the further end of the pipe sunk, held vnderneath it Rose, held on the side toward the
hand applying it turnd from him, held on the opposite side it turnd to him. The cause of this phenomenon was by some
conceiued to be the expanion of glasse on that side where the light is applyed. -- Sr. W Petty sayd it was a desirable
thing to haue a good theory of the springinesse in bodys. Mr Hooke mentiond that formerly he had Explained it in a
Discourse of his brought in vpon occasion of the odde phenomenon of the pipe of mercury standing top full far aboue
the ordinary station. He was desired since that Discourse was not yet brought in by him, that he would bring it in which he
promised to doe. He promised also to bring in some Expt or other at the next meeting. [Listers figures of stones like
plants &c. .
[In margin]44.   Nou: 20. comitte of accounts. Petty. de Vaux. creed. Hook. Vernon. [Laurence. Ford. Player. Win.. candidate. Birch candidate -
The Curator shewed the Company a microscope wth. one only globul of Glasse fastned to an instrument with many Ioynts, to
turne euery way, and soe to shew the object on euery side, with greater Distinctnesse then other microscopes. which kind of
microscope he said a german had brough wth him out of Holland. but had been Long since hinted by himself in the preface
of his micrography -- The same was put in minde both of his account touching the Expt. made nouemb. 6 with water
& with his Discourse of Elasticity. [Boyle tract of saltnessof sea. [Heuelius his machinae coelestis pars prior.
[In margin]46.   Nou. 27. Elers agat & other curios itys. -- The curator shewd an attempt of his of making a vessell soe thin, that
when euacuated of the air conteind in it, it might swim in the air, he considerd that for the Doing hereof, there must be
deuised a body, that is stiff & very subtill & light, and that framd into a capaceous sphere and Emptyed of its air
He mentiond also, that a certain Italian clergyman, calld Lana had written of this subiect, which he thought had been
formerly presented to the Society by their Secretary but was still in his hands.
[In margin]47.   Dec. 1. Election Day. 55. present. -
[In margin]50.   Dec. 4. Esq. Roberts & Sr Gi. Strangeway. prop. -- mr Hooke shewd an Expt. of the springinesse of Cole. which was that
one side of a peice of charkd wood or coal being heated, that side did as in the like Expert. formerly made with glasse
bend from the heat as appeared by a long stick fastend therevnto, and the End pointing to a fixed mark. It was also
tryed againe with a glasse pipe, likewise with a Brasse wire, which Later did Stirr but very Little & almost insensibly
There was produced a microscope of Mr Smethwicks contriuance sayd by him (as Mr Hooke reported) to haue glasses not sphericall but of a Conic
section. which figure the author (as was sayd) affirmed he could make & polish with certainty. being tryd some of the company found it shewd
the Obiect very distinctly, without any colours & magnify the same considerably. It was thought necessary to compare it wth some very good
ones of a sphericall figure. -
[In margin]51.   Dec. 11. Mr. Hooke brought in an apparatus to shew by expts. the strength of the Loadstones attraction. & to find in what pro-
portion it Draws of seuerall distances. He was orderd to fit the apparatus soe that the Designe of it might be well -
presented. -- vpon this Occasion Sr. William petty moued that the Society would give order there might be a
Constant apparatus of Instruments ready for the making of seuerall kinds of Experts. depending on seuerall heads
E. g. for Expts. of motion, opticall, magneticall, Electricall, mercuriall, &c. and that such instruments as had
been formerly vsed by the Society & were out of order might be repaired & all these put together in a room
by themselues, to be ready vpon occasion for strangers, or for Repetition or further prosecution of seuerall sorts of Expt.
[Grew desired to produce botanicall observations next day. he promisd [wirdig. medicina spirituu. [Cassinj 2 lettrs. of 2 new satellites
of . of satellits of aperture of Glasses &c. Iustells letter of mountain of Ice in Berne calld Gletsher. Boyles prise to try G
guineas. tryed.
[In margin]54.   Dec. 18. Mr Hooke produced his instrument for determining the force of the Loadstones attraction of certain distances
but the apparatus failing still, he was desird to fit it. Better for the next meeting. [grew microscope fig of Ash & berberis
[Willis de medicamentoru operationibus &c presentd. D Kings account of it [Bocconi's present for Repos.
[In margin]58.   Ian. 15. 1674. Mr Hooke made an Expt. Diuided with a Ruler Diuided into such small parts as being placed at a certain dist
-ance from the eye appeard to subtend a minute of a degree. & bein earnestly & curiously viewd by all the persons
present, it appeard that not any one present being placed at the assigned Distance was able to Distinguish
those parts which appeard of the bignesse of a minute but they appeard confused. This Expt. he produced, in ord.