94
c
omunication 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 clo
se to the top. Be
sides it was taken notice of that when this factitious air was driuen out
of the ve
ssell, the flaming candle held ouer it was presently blown out by it. [M
r Templer a bed of Amethi
st
Cap
n Bertaes siluer ore from Swethland. Li
ster obseruations prodigies &c.
[In margin]34. Iune 4. the Curator made an Exp
t. with air produced out of Bottle ale putting it into a gla
sse ve
ssell 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 [ab
t. S S morelands ship pump. & a way of weighing anchors. Grew of firr pores &c.
[In margin]36. Iune: 11. Grew micro
scopick pores of seuerall woods. &c. about stiptick liquor &c
Iune 18. m
r Boyles Penetrant liquor & mo
r Denys Styptick liquor. -
[In margin]39. Octob: 30 M
r Hooke being calld vpon for Exp
t. & 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
al
so of finishing his Di
scour
se vpon the same. [Lambs teeth stained [Hoboken de secundina human &c
answers to quarys about Feroe [news of Huelius his Machine cole
stis pars prior. [Listers steptick liquor
one Liuing without foode. -
[In margin]40. Nouemb: 6. Boyle of effluuians -- The curator shewd an exp
t. 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. S
r. W Petty was of opinion that the first impetus of the Sallying Water being
too strong for the pre
ssure 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 pre
ssure to make the water returne to its first perpendicular
- [quick silver vnalterd by keeping Stafford needham Petty. Sw
amerdams answer. The Society De
signe Return to Gresham
[In margin]42 Nou. 13 Boyles tracts pre
sented. -- The Curator was calld vpon for his account concerning his exp
t. made Nou. 8. of
water spreading it Self into a canopy and Reverting to the Perpendicular. He excu
sed himself that he had not been able to make
it Ready. He was de
sired to prepare it for the next Day. --- The same shewed an Exp
t. concerning the Springine
sse
of Gla
sse by applying to a slender Gla
sse 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 Ro
se, held on the side toward the
hand applying it turnd from him, held on the opposite side it turnd to him. The cau
se of this phenomenon was by some
conceiued to be the expanion of gla
sse on that side where the light is applyed. -- S
r. W Petty sayd it was a de
sirable
thing to haue a good theory of the springine
sse in bodys. M
r Hooke mentiond that formerly he had Explained it in a
Di
scour
se of his brought in vpon occa
sion of the odde phenomenon of the pipe of mercury standing top full far aboue
the ordinary station. He was de
sired since that Di
scour
se was not yet brought in by him, that he would bring it in which he
promi
sed to doe. He promi
sed al
so to bring in some Exp
t or other at the next meeting. [Li
sters figures of stones like
plants &c. .
[In margin]44. Nou: 20. c
omitte of accounts. Petty. de Vaux. creed. Hook. Vernon. [Laurence. Ford. Player. Win.. candidate. Birch candidate -
The Curator shewed the Company a micro
scope w
th. one only globul of Gla
sse fastned to an instrument with many Ioynts, to
turne euery way, and soe to shew the object on euery side, with greater Di
stinctne
sse then other micro
scopes. which kind of
microscope he said a german had brough w
th 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 Exp
t. made nouemb. 6 with water
& with his Di
scour
se of Elasticity. [Boyle tract of saltne
ssof sea. [Heuelius his machinae coele
stis pars prior.
[In margin]46. Nou. 27. Elers agat & other curio
s itys. -- The curator shewd an attempt of his of making a ve
ssell 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 mu
st be
deui
sed a body, that is stiff & very subtill & light, and that framd into a capaceous sphere and Emptyed of its air
He mentiond al
so, 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 & S
r Gi. Strangeway. prop. -- m
r Hooke shewd an Exp
t. of the springine
sse of Cole. which was that
one side of a peice of charkd wood or coal being heated, that side did as in the like Exper
t. formerly made with gla
sse
bend from the heat as appeared by a long stick fastend therevnto, and the End pointing to a fixed mark. It was al
so
tryed againe with a gla
sse pipe, likewi
se with a Bra
sse wire, which Later did Stirr but very Little & almo
st in
sen
sibly
There was produced a microscope of M
r Smethwicks contriuance sayd by him (as M
r Hooke reported) to haue gla
sses 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 di
stinctly, without any colours & magnify the same considerably. It was thought nece
ssary to compare it w
th some very good
ones of a sphericall figure. -
[In margin]51. Dec. 11. M
r. Hooke brought in an apparatus to shew by exp
ts. 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 De
signe of it might be well -
presented. -- vpon this Occa
sion S
r. 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 Exper
ts. depending on seuerall heads
E. g. for Exp
ts. of motion, opticall, magneticall, Electricall, mercuriall, &c. and that such instruments as had
been formerly v
sed by the Society & were out of order might be repaired & all the
se put together in a room
by themselues, to be ready vpon occa
sion for strangers, or for Repetition or further pro
secution of seuerall sorts of Exp
t.
[Grew de
sired to produce botanicall observations next day. he promisd [wirdig. medicina spiritu
u. [Ca
ssinj 2 lett
rs. of 2 new satellites
of

. of

satellits of aperture of Gla
sses &c. Iustells letter of mountain of Ice in Berne calld Gletsher. Boyles pri
se to try
Gguineas. tryed.
[In margin]54. Dec. 18. M
r 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 micro
scope fig of Ash & berberis
[Willis de medicamentor
u operationibus &c presentd. D Kings account of it [Bocconi's present for Repo
s.
[In margin]58. Ian. 15. 1674. M
r Hooke made an Exp
t.
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 earne
stly & curiously viewd by all the persons
present, it appeard that not any one present being placed at the a
ssigned Distance was able to Di
stinguish
tho
se parts which appeard of the bigne
sse of a minute but they appeard confu
sed. This Exp
t. he produced, in ord.
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