217
Iune. 20th. 1678.
m
r. Henshaw the vice Presid
t: tooke the chair
The minutes of Iune 6A letter sent to the Royall Society from mo
r: Ballialdus was Read -
wherein was conteined an account of his obseruations made of the
occultation of Saturn by the moon febr: 27. 1678. after sun set .
together w
th. his calculation thereof from the Philolaick tables by w
ch.
he finds that tho
se tables & the Heauens Differ by 19. minutes -
and al
so his calculation of the same by
the Rudolphin tables by w
ch. he finds
that it ought to haue begun then when by his obseruation he found
it quite pa
st. the which he a
scribes partly to a fowrth inequality of the
moon w
ch. he conceiues is not yet brought to a theory. and partly also
the to the Di
srepancy of the motion of
mar 
from the theorys of
it. w
ch.
by is found to be slower than the
. . . Rudolphin tables noe Le
sse
than a degree and an half and /then/
from his noe Le
sse than
1/3 of a Degree
He mentions his De
signe of Rectifying these tables as soon as mo
r Heuelius
shall haue publi
shed his obseruations (w
ch. he says will be w
thin one twelue
month) if god /prolong/
Grant his Life w
ch. is already in
the seuenty third year thereof.
then wi
shing prosperity to
the Society and promi
sing his Indeauour to that End he
subscribes it from Paris may 25. 1678. .
It was orderd that this Letter should be answerd and the Respects &
kind acceptance of the Society signifyed therein, and to communicate
to him w
t. astronomicall matters occurd. here. w
th their De
sire
of his continuing this. corre
spondence to them.
At the same time al
so was Read a Letter from Sig
r. Nazarj dated from
Rome may. 1
st. 1678. Directed to D
r. Grew
acknowledging the Receipt of wherein
he De
sires
to hold correspondence wth this Society and promises desires to haue his
extraordinary Great Re
spect for, and his Earne
st De
sire to
correspond be seruice
able to, this Society by corre
sponding w
th. them and sending them an account
of w
teuer occurrs there philosophicall to be te
stifyed to them.
It was orderd that
the care should be taken to answer this Letter and to continue
this corre
spondence now begun & soe much De
sired by him.
A third Letter was also Read from Chri
st: Hugeuines to D
r. Grew from
the Hague Iune
the 6. 1678 - giuing an account of his hauing Receiued his
Letter and that he was de
sirous to be informd concerning the Inuentions
and Acts of the Society as he had formerly been by m
r. oldenburg.
moreouer that he would in return communicate w
t. he thought worthy
of the society if any such occurrd. He addes that he had of late
madespent some thought about improuing micro
scopes being pr
opted thereto by
the Di
scouery of tho
se
. . . minutes animalcules in Semine Animalj. made by
one - Hammius a student at Leyden . which
he animalcules he hath often seen -
It was orderd that care should be taken to answer this letter & to continue this
corre
spondence w
th. him.
Ref: CELL/RS/HF_219 © Centre for Editing Lives and Letters
