1918.] The N.Z. Journal of Science and Technology. 
309 
Magnetic Declination, E. 16° -\~ Tabular Minutes of Arc. 
Year 1916. 
G.M.T. 
Jan. 
Feb. 
Mar. 
April. 
May. 
June. 
July. 
Aug. 
Sept. 
Oct. 
Nov. 
Dec. 
Annual 
Means. 
h. 
, 
, 
/ 
/ 
' 
' 
/ 
, 
, 
/ 
0 
49-2 
50-0 
50-5 
50-5 
49-7 
49-8 
49-7 
50-4 
50-4 
5T2 
51-9 
52-1 
50-5 
1 
50-8 
52-7 
52-5 
52-5 
51-5 
50-8 
50-8 
51-3 
52-3 
53-5 
53-9 
54-0 
52-2 
2 
51-7 
54-1 
53-2 
53-2 
52-5 
52-0 
52-0 
52-7 
53-7 
54-9 
55-5 
55-1 
53-4 
3 
51-6 
54-2 
53-2 
53-0 
52-6 
52-3 
52-6 
53-3 
54-6 
55-5 
55-6 
55-4 
53-7 
4 
50’5 
53-1 
51-9 
51-5 
52-1 
51*6 
52-2 
53-8 
54-3 
54-3 
551 
54-7 
52-9 
5 
49-7 
51-5 
50-9 
50-5 
50-5 
50-3 
51-5 
52-9 
53-4 
531 
54-2 
53-7 
51-9 
6 
49-1 
49-7 
49-8 
49-6 
49-3 
49-6 
50-6 
51-3 
51-4 
52-1 
52-5 
52-8 
50-7 
7 
491 
48-9 
48-9 
49-7 
49-8 
49-5 
50-2 
511 
51-0 
51-7 
51-8 
52-4 
50-3 
8. 
48-5 
48-8 
48-9 
48-6 
49-2 
49-1 
49-5 
51-0 
50-1 
49-8 
5T1 
51-4 
49-7 
9 
48-3 
48-6 
48-9 
48-8 
48-1 
49-2 
49-0 
50-6 
50-4 
50-2 
50-6 
51-2 
49-5 
10 
47-9 
48-3 
48-2 
47-8 
48-1 
48-6 
49-4 
50-2 
49-4 
49-1 
49-9 
50-5 
49-0 
11 
47-6 
48-1 
47-8 
47-7 
47-9 
48-4 
49-1 
50-1 
49-5 
49-1 
49-1 
50-2 
48-7 
Noon 
47-4 
48-2 
47-7 
47-8 
48-2 
48-4 
49-3 
49-8 
49-5 
49-6 
49-3 
50-0 
48-8 
1 
47-0 
47-9 
47-6 
48-0 
48-6 
48-9 
49-4 
50-3 
49-5 
49-8 
49-7 
50-1 
48-9 
2 
46-9 
48-0 
47-4 
48-8 
49-2 
49-3 
49-5 
50-1 
50-0 
50-3 
49-8 
50-1 
49-1 
3 
46-9 
48-2 
47-5 
48-8 
49-5 
49-7 
49-9 
51-0 
50-3 
51-1 
50-4 
50-6 
49-5 
4 
46-7 
48-1 
47-5 
49-1 
49-6 
50-1 
50-2 
51-5 
50-8 
50-4 
50-7 
50-5 
49-6 
5 
46-5 
48-2 
48-0 
49-4 
49-7 
50-2 
50-7 
51-5 
51-0 
50-7 
50-1 
50-0 
49-7 
6 
45-7 
47-0 
48-4 
49-5 
49-8 
50-2 
50-5 
51-5 
51-3 
50-1 
49-2 
48-7 
49-3 
7 
44-8 
45-8 
47-5 
49-0 
49-4 
50-5 
50-9 
51-3 
50-6 
48-8 
48-0 
47-1 
48-6 
8 
43-3 
44-2 
46-5 
47-9 
49-1 
50-4 
51-0 
50-7 
50-1 
47-4 
46-1 
45-9 
47-7 
9 
431 
43-3 
45-3 
46-9 
48-4 
50-0 
51-0 
50-3 
48-4 
46-1 
45-2 
45-5 
47-0 
10 
44-0 
44-1 
46-1 
46-8 
48-4 
49-6 
50-3 
49-6 
47-7 
46-7 
46-3 
47-2 
47-2 
11 
46-2 
46-7 
47-9 
47-9 
48-7 
49-6 
49-8 
49-4 
48-2 
48-4 
48-6 
•49-3 
48-4 
Monthly 
means 
47-6 
48-7 
48-9 
49-3 
49-6 
49-9 
50-4 
51-1 
50-7 
50-6 
50-6 
50-8 
49-8 
The mean value of the magnetic declination for the year 1916 is E. 16° 49''8. 
Horizontal Magnetic Force, 0’22... C.G.S. Unit. 
Year 1915. 
G.M.T. 
Jan. 
Feb. 
Mar. 
April. 
May. 
June. 
July. 
Aug. 
Sept. 
Oct. 
Nov. 
Dec. 
Annual 
Means. 
h. 
0 
378 
366 
373 
374 
383 
374 
375 
366 
363 
354 
352 
361 
368 
1 
398 
373 
380 
376 
380 
376 
372 
364 
363 
361 
357 
370 
373 
2 
408 
384 
390 
382 
382 
375 
371 
364 
366 
372 
365 
372 
378 
3 
415 
395 
392 
387 
385 
376 
374 
370 
373 
379 
376 
379 
383 
4 
418 
408 
398 
389 
390 
379 
380 
376 
379 
385 
384 
384 
389 
5 
421 
411 
393 
392 
388 
381 
384 
381 
383 
386 
385 
390 
391 
6 
420 
409 
394 
390 
390 
383 
385 
382 
380 
381 
385 
391 
391 
7 
418 
407 
397 
393 
392 
387 
384 
384 
381 
382 
381 
387 
391 
8 
415 
407 
397 
392 
391 
385 
384 
382 
379 
379 
381 
386 
390 
9 
414 
408 
401 
392 
395 
387 
388 
383 
382 
382 
380 
387 
392 
10 
413 
412 
402 
395 
396 
387 
386 
383 
384 
384 
382 
387 
393 
11 
414 
407 
i 404 
395 
399 
386 
387 
384 
382 
385 
381 
387 
393 
