46
in hot or cold air. m
r. Hooke made an exp
t. of Gunpowder burning w
thout air orderd
tht the seald weathergla
sses
be made of thicker gla
sse to be inclo
sed in the compre
ssing engine to see whether any alteration will
be made in the liquor. (monstrous Calf) madrid ob
seruation of Comet.) S
r. Robert moray moued that
m
r Hookes Lecture might be perfected & printed which was a
ssented to. Kindle charcole
included in a Receiuer w
thout exhau
sting the air, went out in a minute, repeated again it
continued. 1 1/3 minute .(about anatomy.) orderd that m
r Hookes exp
t of the re
si
stance of air
pa
ssing into small holes be tryed.
Feb: 22. 1664/5. (comet
of cutts). There was tryd an exp
t. w
th a c
omon seald weathergla
sse placed in the
conden
sing engine w
th. a gage in it and the air being con
siderably compre
ssed
the liquor in the ther
mometer was not found to ri
se sensibly. another exp
t. was made to try what strength
was requi
site to force the air into the bones of small pipes filld with water or how
much of the pre
ssure of the air is taken off by its ingre
sse into smaller & smaller holes
and it was found that the smaller holes did require the greater force to driue in the
air and to force out the water. There was al
so made an Exp
t. w
th niter put in an
earthen
crys cru
sible vpon the fire, & sulphur being ca
st on the top of it, it gaue
a very bright viuid flame (Sorbiers di
scour
se about comet) plant ni
si p
esented) new
optick gla
sses of Campani) m
r. Hooke gaue an account of a Dog that dyed after
his spleen had been taken out, affirming that he had seen a kind of glandule grown
on to a peice of the spleen that was Left. and that the liuer & cawle were altogether
putrifyed (It was orderd that another dog by D
r Charlt & D
r Clark.) m
r. boyle propounds exp
ts.
chymicall in exhau
sted Rec
r:) m
r. Hooke produced a new small quadrant by himself
contrived to make by the meanes thereof bothe Cele
stiall & terre
striall ob
seruations w
th more exactne
sse then by the Large
st In
struments, that haue hitherto been publiquely known
this quadrant is only of 17 inches Radius being by the contriuance of a small rowler
that moueth vpon the limb of it made soe accurate that each Degree is actually dis
tingui
sht into 60 minutes each of w
ch. minutes being about 1/3 of an inch Long is actually
Diuided into 6 parts denoting euery 10 seconds in a minute. the sights are likewi
se
soe contriued though but short as to be noe Le
sse curious in Di
stinguishing the parts
of a minute in the vi
sible Object. the perpendicular al
so of the quadrant is soe
contriued that though it exceed not much 3 foot in Length yet it can be adju
sted
by the meanes of an index soe exactly as if it were 60 foot Long. -
March. 1. 1664/5. There was an exp
t. made to try whether sulphur ca
st vpon heated niter
would Burn without air. by putting niter into an Iron crucible Red hot and inclo
sing it in
the rarifying engine whence the air being well exhau
sted which appeard by the suckers going
down almo
st to the bottom. The sulphur which therevpon by turning the stopcock was Let
fall vpon the Niter, and was seen to flame as freely as if it had been in the open air.
m
r. Hook was orderd to diui
se more exp
ts. to Elucidate the nature of fire and burning.
A Letter of Hugens. feb. 65. about v
se of pend watch at Sea. Sympathy of pend: agreem
t w
th S
r Ch wrens hyp of Comet
opinion of De
sons chariot. directions for sea watches to be printed in Engli
sh) That m
r. Hooke should ex=
tract out of his Lecture a Di
scour
se ^ /vpon/
of the Late comet & fit it for the pre
sse together w
th. the nece
ssa
ry. (Col Blunt to bring modul of chariot) m
r. Euelyns paper about french bread) kiflers ouen)
furs bushes rould in ea
st makes it keep all
the year.) Salt white of Egg & flower beaten & ferment togeth
and serue for yest) of maca
ssar poi
son way of trying campanys gla
sses. Orderd that the Pres
t. S
r. R mory
Col Long & m
r Hooke and as many els should meet thurs/day/ night next at we
stmin
ster hall & try seuerall
Engl: gla
sses of m
r. Reeues making of the same Length vpon the same character ob
seruing the cir
cum
stances pre
scribed in the paper concerning Di
stance Light &c.
march
the 8. 1664/5. The exp
t. of flam
ig sp
t. of Wine (as propo
sd by m
r Boyle) included in a Rec
r: of the Pneu
matick Engine was made w
th this succe
sse. That the s
d spirit was extingui
sh in the Re
ceiuer exhau
sted in 9 section, in the vnexhau
sted it kept burning 24 seconds. -
The exp
t. of nitre & filed tinn was al
so made and the filings of tin ca
st vpon niter ouer the
fire made it flame, though it was neuer known that any sulphur was extracted out
of tinn which seems to Inferr. that there /are/ bodies combu
stible that are not Sulpherous. D
r. wilkins
p'po
sd
that
the following Exp
t. of D
r wrens sugge
stion might be tryd viz
t to putt a fermenting liquor in a gla
sse ball to which a stop cock should
be fitted and to ty a bladder about the top of the stop
cock by which meanes a certain air generated by the fermenting
Ref: CELL/RS/HF_048 © Centre for Editing Lives and Letters