484 
PROFESSOR A. SCHUSTER ON THE DIURNAL 
Table IX.—Comparison between calculated and observed variation of force to 
geographical West. The unit of force is C.G.S. 10“®. The first four terms 
only of the series cos (! + 6, sin t + cos 2^ fi- sin 2t have been taken into 
account. 
Bomliay. 
Lisbon. 
Greenwich 
St. Petersburg. 
Observed. 
Calculated. 
Observed. 
Calculated. 
Observed. 
Calculated. 
Observed. 
Calculated. 
Astroiioinical 
time. 
a-i + 29 
+ 27 
+ 80 
+ 70 
+ 95 
P 93 
P 96 
P 100 
1 
1 
h + 74 
+ 82 
+ 172 
+ 172 
+ 174 
P 184 
P 161 
P 161 
Cl-) -f* 68 
+ 66 
+ 70 
+ 50 
+ 42 
P 40 
P 42 
P 43 
h + 41 
+ 56 
+ 131 
+ 138 
T 111 
P 127 
P 92 
P 87 
Hour. 
0 
+ 97-0 
+ 93-0 
+ 1.50-0 
+ 120-0 
+ 137-0 
P 133-0 
P 138-0 
+ 143*0 
i 
+ 126-6 
+ 132-5 
+ 247-9 
+ 224-4 
+ 228-8 
P 235-6 
P 216-8 
P 219-0 
2 
+ 131-6 
+ 145-9 
+ 303-7 
+ 291-1 
+ 286-4 
P 302-5 
p 264-3 
P 263-9 
1 3 
+ 113-8 
P 133-1 
+ 309-2 
+ 309-1 
+ 301-2 
P 322-9 
P 273-7 
P 271-5 
4 
+ 80-1 
+ 100-0 
+ 267-4 
+ 278-5 
+ 273-3 
P 295-8 
P 246-1 
P 243-2 
5 
+ 40-6 
+ 57-0 
+ 191-8 
+ 210-0 
p 211-8 
P 230-7 
P 190-0 
P 187-7 
G 
+ 6-0 
+ 16-0 
+ 102-0 
+ 122-0 
P 132-0 
P 144-0 
P 119-0 
P 118-0 
7 
- 15-4 
- 13-0 
+ 19-4 
+ 35-8 
P 51-6 
P 55-5 
P 48-2 
P 48-9 
8 
- 19-9 
- 24-0 
- 39-4 
- 30-5 
- 13-9 
- 17-2 
- 9-3 
- 7-4 
9 
- 9-2 
- 17-1 
- 66-0 
- 65-9 
- 55-2 
- 62-7 
- 46-1 
- 43-9 
10 
+ 10-4 
+ 21 
- 61-7 
- 69-1 
- 70-4 
- 78-5 
- 61-3 
- 59-9 
11 
+ 29-6 
+ 24-3 
- 37-7 
- 48-8 
— 65-8 
- 71-0 
- 60-6 
- 61-2 
12 
H- 39-0 
i- 39-0 
- 10-0 
- 20-0 
- 53-0 
- 53-0 
- 54-0 
- 57-0 
13 
+ 32-2 
+ 37-9 
+ 4-3 
+ 0-2 
-■ 45-0 
- 39-4 
- 52-0 
— 57-6 
14 
+ 7-4 
+ 17-1 
— 6-9 
- 2-1 
- 52-2 
- 42-5 
- 62-9 
- 70-3 
15 
- 31-8 
- 21-1 
- 47-2 
- 33-1 
- 79-2 
- 68-9 
- 89-7 
- 97-5 
16 
- 77-1 
- 69-0 
- 110-6 
- 89-5 
- 123-1 
- 115-8 
- 128-7 
- 1.35-6 
17 
- 117-4 
- 115-4 
- 182-0 
- 158-6 
- 173-6 
- 172-9 
- 170-8 ■ 
- 175-1 
18 
- 142-0 
- 148-0 
- 242-0 
- 222-0 
- 216-0 
- 224-0 
- -203-0 
- 204-0 
19 
- 143-4 
- 157-4 
- 271-6 
— 260-4 
- 235-4 
- 251-7 
- 213-0 
- 210-3 
20 
- 119-1 
- 139-0 
- 257-4 
- 258-5 
- 220-3 
- 242-8 
- 192-1 
- 186-2 
21 
- 72-8 
- 94-9 
- 196-0 
- 210-1 
- 166-8 
- 191-3 
- 137-9 
- 130-1 
22 
- 13-4 
- 33-1 
- 95-1 
- 119-9 
- 79-8 
- 101-5 
- 56-1 
- 47-7 
23 
+ 47-2 
+ 34-1 
+ 27-9 
- 2-6 
P 2/-6 
i 
P 13-2 
P 41-4 
P 48-6 
