140 M. de Zach’s Agronomical Obfervations. 
\ 
1 9th March, 1783. 
The fun’s upper limb at the horizontal -j 
.wire of the firft telefcope on the eaftern 
fide J 
Sun’s upper limb at the fame altitude on 1 
the weftern fide of the meridian - J 
Dividing the fum by 2 
Sun’s center on the meridian as marked by \ 
the pendulum dock j 
Equation of the day 
Clock (lower than equated folar time 
Sun’s 
Alcit. 
ill oblcrva- 
tion. 
Sun’s 
Alt. 
lid obler- 
vation. 
O / 
3 1 30 
h* / // 
9 1 5 6 
O 
33 
h* / // 
9 x 3 9 
H 3i 47 
H 20 3 3 
2 3 33 43 
11 46 5 1'f 
12 7 57 
2 3 33 4 2 
11 46 51 
12 7 57 
021 6 
021 6 
/ // 
Clock flower than equated folar time 19th March 21 6 
— — — - 1 8th March 19 32 
Retarding of the clock upon 23 b. £58' 8" - 1 34 
I obferved too the mid-day at the great gnomon of the ob- 
fervatory, and found at the fame time the meridian line erro- 
neous by 1 9", as you will find in the following tables. 
h - / ,/ 
h. y y/ 
h - y y/ 
When the center of the fun’s q 
the 
the 
the 
image was on the meridian the > 
17 th 
*1 50 50 
1 8 th 
n 48 56 
19 th 
47 3 . 
time pointed by the clock was 9 
Mar. 
Mar. 
Mar. 
Equations of thofe days 
b 
12 8 33 
12 8 15 
12 7 57 
Retarding, on equated folar time 
17 43 
19 19 
the 
20 54 
Retarding the 17 th 
- 
i7 43 
1 8th 
19 19 
Retarding of the clock during thofe 24 hours 
1 36 
i- 35- 
I fixed therefore the retarding of the clock T 35". 
True 
