12 
Results of Makeestoun Observations, 1845. 
TABLE XX. — Diurnal Kange of the Horizontal Component of Magnetic Force for each Civil Day, as 
deduced from the Hourly Observations, v^^ith the Mean for each "Week in 1845. 
Civil 
Day. 
Jan. 
Feb. 
March. 
April. 
May. 
June. 
July. 
Aug. 
Sept. 
Oct. 
Ivov. 
Dec. 
, ... _ 
0"0 
0"0 
O'O 
O'O 
0*0 
O'O 
O'O 
O'O 
0*0 
O'O 
■ 
O'O 
1 
0157 
0203 
0174 
0336 
0602 
[03771 
0435 
0420 
0476 
0281 
0533 
0148 
2 
0151 
[02181 
[0222] 
0290 
0252 
0242 
0472 
0386 
0588 
0328 
[0299] 
0249 
3 
0081 
0183 
0220 
0426 
0358 
0351 
0354 
[04771 
0487 
0309 
0260 
3538 
4 
0073 
0164 
0136 
0417 
[0411] 
0346 
0368 
0745 
0889 
0336 
0221 
1193 
5 
[0119] 
0252 
0172 
0431 
0409 
0438 
0323 
0448 
0407 
[0341] 
0343 
0262 
6 
0095 
0370 
0193 
[0434] 
0400 
0384 
[0377] 
0445 
0416 
0445 
0200 
0221 
7 
0225 
0182 
0227 
0473 
0448 
0427 
0269 
0340 
[0506] 
0312 
0358 
[0349] 
8 
0088 
0134 
0269 
0386 
0412 
[0446] 
0582 
0508 
0540 
0316 
0150 
0146 
9 
1687 
[0215] 
[0232] 
0472 
0447 
0526 
0368 
0427 
0468 
0727 
[0203] 
0123 
10 
1375 
0221 
0315 
0307 
0405 
0514 
0421 
[0395] 
0316 
0693 
0127 
0150 
11 
0169 
0143 
0214 
0344 
[0416] 
0385 
0451 
0370 
0347 
0308 
0210 
0130 
12 
[0661] 
0241 
0172 
0347 
0339 
0454 
0398 
0353 
0399 
[0401] 
0171 
0231 
13 
0230 
0325 
0244 
[0872] 
0427 
0340 
[0403] 
0374 
0423 
0265 
0153 
0336 
14 
0249 
0127 
0346 
3542 
0469 
0367 
0477 
0392 
[0375] 
0207 
0154 
[02451 
15 
0259 
0105 
0351 
0398 
0543 
[0377] 
0361 
0699 
0319 
0209 
0161 
0392 
16 
0126 
[0176] 
[03401 
0297 
0799 
0316 
0311 
0521 
0319 
0311 
[0260] 
0150 
17 
0203 
0214 
0323 
0351 
0609 
0374 
0377 
[0513] 
0445 
0378 
0654 
0230 
18 
0218 
0118 
0447 
0413 
[0578] 
0414 
0364 
0445 
0545 
0328 
0245 
0300 
19 
[0479] 
0167 
0332 
0683 
0599 
0356 
0377 
0503 
0326 
[0359] 
0196 
0101 
20 
1715 
0375 
0668 
[0469] 
0475 
0473 
[0418] 
L 
0519 
0336 
0276 
0141 
0115 
21 
0106 
0360 
0389 
0540 
0441 
0444 
0493 
0475 
[0396] 
0405 
0188 
[0157] 
22 
0504 
0378 
0307 
0416 
0493 
[0401] 
0434 
0402 
0308 
0455 
0302 
0143 
23 
0335 
[0439] 
[0488] 
0409 
0386 
0438 
0462 
0337 
0364 
0213 
[0182] 
0153 
94- 
0452 
0627 
0559 
0599 
0573 
0431 
0479 
r038Sl 
0496 
0232 
0153 
0132 
25 
0378 
0406 
0528 
0619 
[0404] 
0266 
0813 
0360 
0872 
0335 
0210 
0143 
26 
[0473] 
0490 
0475 
0571 
0312 
0428 
0344 
0444 
0368 
[0203] 
0099 
0119 
27 
0479 
0360 
0487 
[0588] 
0337 
0349 
[0448] 
0308 
0571 
0158 
0139 
0230 
28 
0361 
0269 
0274 
0875 
0321 
0473 
0389 
0374 
[0436] 
0133 
0508 
[0197] 
29 
0833 
0384 
0384 
0314 
[0441] 
0337 
0770 
0266 
0146 
0323 
0172 
30 
0277 
[0347] 
0480 
0585 
0490 
0329 
0588 
0256 
0182 
[0817] 
0370 
31 
0231 
0311 
0427 
0419 
[0547] 
0256 
0148 
TABLE XXI. — Means of the Diurnal Ranges of the Horizontal Component of Magnetic Force, 
with reference to the Moon's Age and Declination, for 1845. 
Moon's 
Age. 
Mean 
Range. 
Moon's 
Age. 
Mean 
Range. 
After 
Moon 
farthest 
North. 
Mean 
Range. 
After 
iMoon 
farthest 
North. 
Jlean 
Range. 
Day. 
O'OO 
Dav. 
0-00 
Day. 
0-00 
Day. 
i>00 
15 
3538 
0 
3310 
6 
3481 
14 
3731 
16 
3976 
1 
5104 
1 
4383 
15 
3281 
17 
3895 
2 
4401 
2 
3637 
16 
3216 
18 
4513 
3 
3537 
3 
6304 
17 
7364 
19 
3945 
4 
6065 
4 
3565 
18 
4982 
20 
3485 
5 
3967 
5 
4209 
19 
3286 
21 
4553 
6 
3315 
6 
3890 
20 
3433 
22 
3444 
7 
3822 
7 
4159 
21 
3301 
23 
3161 
8 
5964 
i 8 
4008 
22 
3135 
24 
3582 
9 
3205 
9 
3937 
23 
3422 
25 
2996 
10 
3396 
10 
3911 
24 
2731 
26 
3125 
11 
3394 
11 
3126 
25 
3276 
27 
2875 
12 
4643 
12 
3486 
26 
3119 
28 
2950 
13 
3393 
1 13 
3461 
27 
3194 
1 
3346 
14 
3536 
1 
