13
3 speculations about pendules of Diuers figures. RH tryd Exp
t of bodys de
scending in water
RH order to make In
strument for Grinding gla
sses. RH Intimated that he had ob
serud that
vpon
the fall of the
wet weather followed. Oct 26. RH di
ssected a Viper
nou: 2. Zulichems Letter. 1 a new thermometer w
th a cane full of salt water & wax balls in it
2 of his further pro
secution of exp
ts. on pendules. 3 his hauing seen Diuini 12 foot gla
sse bear an
aperture of 2 inches. RH his accounts of Refractions and of Vipers teeth Read. RH
propounded
the Exp
t. on
the Lungs of a dog w
th bellows - nou: 9 S
r. Iohn Cutler
hauing founded a Lecture and settled an annuall stipend ^ /of 50 pounds/ vpon m
r Hooke as
Profe
ssor During his life Entru
sting the society w
th. the Direction & Care thereof
was elected Honorary member of the said Society & S
r. W Petty D
rwilkins D
r. whi
stler & m
r Grant were appointed to attend him in the
name of
the Society w
th. the following order
vpon Report made to this society by D
r. Whi
stler that S
r. I. C. knight & Bar
thad declared his Re
solution to be
stow vpon m
r. Rob: Hooke during his Life an annual
stipend of 50
ll. to be paid half yearly, hauing already aduanced the the summ
of 25
ll. for the fir
st half year ending at Lady Day next. In con
sideration
of w
ch. yearly stipend the said S
r. I Cutler is willing to refer it to the Pre
si
dent councell & fellows of
the R S of Lond for improuing Nat: Knowl: to
Direct & appoint the said m
r. Hooke how many Lectures he shall Read
& when & vpon w
t subjects; or what kind of Inquirys by way of exp
t. he
shall be ingaged to pro
secute. This society doth herevpon Returne their hearty
thanks to S
r I C. for this Particular Fauour to a worthy member. and for
that Re
spect & confidence he hath thereby expre
ssed to their whole body
And they doe likewi
se vnanimou
sly agree to admitt the said S I C. an Honora
ry fellow of this Society to haue the liberty of being pre
sent at their meetings -
when and as often as he plea
seth w
thout being obleiged to any payments or -
other ta
skes & S
r. W Petty D
r. Wil. D
r Whi
st & m
r. Gr. are hereby appointed to
attend S
r. I C. in
the name of
the S. and to repre
sent to him w
t a sen
se they haue of
his fauour. w
ch. they haue the more Rea
son to Value as being the fir
st Donation
they haue been intru
sted w
th of this kind & w
ch. they hope will proue a Leading
Example to others.
RH Reported exp
ts. of Refraction . and of
the Dog & bellows RH weighed tin minerall in
water. nouem: 16: 1664. a book again
st Pa
schall left by L
d Brounker
RH reported tin stone 6 1/2 times heauier than water. Zulichems exp
ts. of Pendules of
seuerall figures was examined . & found true. RH tryd Exp
t of Refraction -
RH propo
sd to find the Differing refraction between air & noe air in a gla
sse
and orderd to bring in a Li
st of Exp
ts of Refraction -
nou: 23. Expt of Refraction . . RH mentiond an In
strument for mea
su
ring the Refraction w
ch. coele
stiall bodys suffer in the air. he was orderd to bring
in his scheme next Day. as al
so to take care that his quadrant be made ready for
Di
scouering a 2
d minute by
the sun or starrs - Zulichems Proportion of the Length of
a Pendule. as
the di
stance of
the center of
the bullet from
the point of su
spen
sion to the ra
dius of
the bullet soe
the Radius to a 3
d -
. . . two fifth of w
ch. added to the
fir
st Length giues the true Length of a Pendule of any bigne
ss. Zulichems-
obserue 9 1/2 Rindland inches make the Length of a half second pendule
Refraction exp
ts orderd to be continued -
Ref: CELL/RS/HF_015 © Centre for Editing Lives and Letters
