12 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845. 
TABLE XX.—Diurnal Range of the Horizontal Component of Magnetic Force for each Civil Day, as 
deduced from the Hourly Observations, with the Mean for each Week in 1845. 
|| Jan. Feb. March. | April. May. June. July. Aug. Sept. 
00 00 0-0 oo oO 0-0 M 
0157 | 0203 | 0174 | 0336 | 0602 | [0377]| 0435 | 0420 | 0476 
0151 | [0218] | [0222]| 0290 | 0252 | 0242 | 0472 | 0386 | 0588 
00s1 | 0183 | 0220 | 0426 | 0358 | 0351 | 0354 | [0477]| 0487 
0073 | 0164 | 0136 | 0417 | [0411]| 0346 | 0368 | 0745 | oss9 | 0336 | 0221 | 1193 
[0119]| 0252 | 0172 | 0431 | 0409 | 0438 | 0323 | 0448 | 0407 | [0341]| 0343 | 0262 
0095 | 0370 | 0193 | [0434]| 0400 | 0384 | [0377]| 0445 | 0416 | 0445 | 0200 | 0221 
0225 | 0182 | 0227 | 0473 | 0448 | 0427 | 0269 | 0340 | [0506]| 0312 | 0358 | [0349] 
00ss | 0134 | 0269 | 0386 | 0412 | [0446]| 0582 | 0508 | 0540 | 0316 | 0150 | 0146 
1687 | [0215]| [0232]| 0472 | 0447 | 0526 | 0368 | 0427 | 0468 | 0727 | [0203]] 0123 
1375 | 0221 | 0315 | 0307 | 0405 | 0514 | 0421 | [0395]| 0316 | 0693 | 0127 | 0150 
0169 | 0143 | 0214 | 0344 | [0416]] 0385 | 0451 | 0370 | 0347 | 0308 | 0210 | 0130 
[o661]} 0241 | 0172 | 0347 | 0339 | 0454 | 0398 | 0353 | 0399 | [0401]| 0171 | 0231 
0230 | 0325 | 0244 | [0872]| 0427 | 0340 | [0403]| 0374 | 0423 | 0265 | 0153 | 0336 
0249 | 0127 | 0346 | 3542 | 0469 | 0367 | 0477 | 0392 | [0375]| 0207 | 0154 | [0245] 
0259 | 0105 | 0351 | 0398 | 0543 | [0377]| 0361 | 0699 | 0319 | 0209 | 0161 | 0392 
0126 | [0176]| [0340]} 0297 | 0799 | 0316 | 0311 | 0521 | 0319 | 0311 | [0260]| 0150 
0203 | 0214 | 0323 | 0351 | 0609 | 0374 | 0377 | [0513]| 0445 | 0378 | 0654 | 0230 
021s | 0118 | 0447 | 0413 | [0578]] 0414 | 0364 | 0445 | 0545 | 0328 | 0245 | 0300 
|| [0479]| 0167 | 0332 | 0683 | 0599 | 0356 | 0377 | 0503 | 0326 | [0359]| 0196 | 0101 
1715 | 0375 | 0668 | [0469]| 0475 | 0473 | [0418]| 0519 | 0336 | 0276 | 0141 | 0115 
| 0106 | 0360 | 0389 | 0540 | 0441 | 0444 | 0493 | 0475 | [0396]] 0405 | 0188 | [0157] 
0504 | 0378 | 0307 | 0416 | 0493 | [0401]| 0434 | 0402 | 0308 | 0455 | 0302 | 0143 
| 0335 | [0439]| [0488]| 0409 | 0386 | 0438 | 0462 | 0337 | 0364 | 0213 | [0182]| 0153 
0452 | 0627 | 0559 | 0599 | 0573 | 0431 | 0479 | [0388]| 0496 | 0232 | 0153 | 0132 
0378 | 0406 | 0528 | 0619 | [0404]| 0266 | 0813 | 0360 | 0872 | 0335 | 0210 | 0143 
[0473]| 0490 | 0475 | 0571 | 0312 | 0428 | 0344 | 0444 | 0368 | [0203]| 0099 | 0119 
0479 | 0360 | 0487 | [0588]| 0337 | 0349 | [0448]| 0308 | 0571 | 0158 | 0139 | 0230 
0361 | 0269 | 0274 | 0875 | 0321 | ‘0473 | 0389 | 0374 | [0436]| 0133 | 0508 | [0197] 
0833 0384 | 0384 | 0314 | [0441]| 0337 | 0770 | 0266 | 0146 | 0323 | 0172 
0277 [0347]| 0480 | 0585 | 0490 | 0329 | 0588 | 0256 | 0182 | [0817]! 0370 
0427 0148 
0-0 0-0 
0281 0533 | 0148 
0328 | [0299]} 0249 
0309 | 0260 | 3538 
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. i 
After After 
Moon’s Mean Moon Mean Moon 
Range. |/farthest) Range. |farthest 
North. North. 
0-00 Day. 0-00 Day. 
3310 0 3481 14 
5104 1 4383 15 
4401 2 3637 16 
3537 3 6304 17 
6065 4 3565 18 
3967 5 4209 19 
3315 6 3890 20 
3822 7 4159 21 
5964 8 4008 22 
3205 9 3937 23 
3396 10 3911 
3394 11 3126 
4643 12 3486 
3461 
