[ ] 
of the faid Month, here in the Hague ; and after- 
wards in different places. As I find, that you have 
obferved the comet, I doubt not but that you have 
done it in the mod; accurate manner ; and my great 
love for this fcience induces me to beg, that I may 
have the happinefs of knowing fome of your ob- 
fervations. My good friend Mr. Struyk at Amder- 
dam wrote me fome time ago, that he intended to 
afk the fame favour of you ; but I have not fince 
heard any further from him. I obferved this comet 
from Septemb. 16th in the morning, until Odtob. 
the nth in the morning ; and found its fituations, 
according to my method, as follows : 
Longit. Latit. 
*7 57* . o / . o / 
Sept, 1 6. at 4I1. ante mer. The comet in S io 15 with 10 10 North. 
17 
— 3 
— 
— _ 
— — ffi 14 7 
9 3 8 
18 
— 3 i 
— 
■ — • — 
— . — S 1 8 10 
8 57 
*9 
— 4 
— 
. — — 
■ — • • — $ 22 1 
8 17 
22 
_ « 2 3 
6 15 
2 3 
— 4 
— 
— — 
— — £1 7 36 
5 2 4 
25 
— 4 ? 
— 
• — • — 
— ■ — SI 14 50 
4 6 
28 
“4 
— 
* — 
— — Si 24 22 — 
1 41 
I 
— 4 i 
— 
— — 
— — nje 2 46 — 
0 12 South. 
4 
— 4 ? 
— 
— — 
— ' — nje 9 45 
1 30 
9 
— 4 * 
— 
— — 
• — • — ' f 20 20 
2 40 
1 1 
— S 
3 9 
But the two lad obfervations will, in my opinion, 
differ the mod j becaufe, when I made them, I was in 
fome doubt about the adjudment of my indruinents ; 
and the comet was then far advanced into the morn- 
ing rays. I have, fince the month of February lad 
to the end of May, made fundry obfervations on 
fixed dars, with a tclefcope of 16 inches, made by 
Mr. Short j and with a pendulum clock, made after 
the manner of Mr. Graham, by Mr. Vryhthoff of 
this 
