le OR a a Be 
HARMONIC ANALYSIS OF TIDAL OBSERVATIONS. 
113 
§ 12. Auxitrary TaBLEeS DRAWN UP UNDER THE SUPERINTENDENCE OF 
Masor Batrp, R.E. 
Values of N (Long. Moon’s Ascending Node) for 08 Jan. 1, G.M.T. 
Value at 0° G ALT. Jan. 1, 1880 =285°:956863. 
Motion per Julian year in 1880 =19°'34146248. 
Motion for 365 days =19°'32822387, and for 1 day =0°:052954. 
Year N 
312°7861 
293-4049 
274-0767 
254-7485 
2354203 
216-0391 
196-7109 
1773826 
158-0544 
138-6732 
119-3450 
100-0168 
80°6886 
61°3074 
419792 
Ot H Go bo 
186 
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as) 
FONWrFOUMUDNAH 
Year 
N 
22-6509 
3°3227 
343-9415 
3246133 
305°2851 
285-9569 
266°5757 
247-2475 
227-9192 
208°5910 
189:2098 
169°8816 
150°5534 
131-2252 
1118440 
Year N Year N 
1890 | 92-5158 || 1905 | 1624335 
1 731875 6 | 143°1053 
2 | 53-8593 7 | 123-7771 
3 | 34-4781 8 | 104-4489 
4 | 15-1499 9 | 85-0677 
1895 | 355-8217 || 1910 | 65-7395 
6 | 336-4935 1 46-4112 
7 | 317-1123 2 | 27-0830 
8 | 297-7841 3 77018 
9 | 278-4558 4 | 348-3736 
1900 | 259-1276 || 1915. | 329-0454 
1 | 239-7994 6 | 309-7172 
2 | 220-4712 7 | 290-3360 
3 | 201-1429 8 | 271-0078 
4 | 181-8147 9 | 251:6795 | 
Decrement of N since 0® Jan. 1 up to midnight of certain days of the year. 
In leap year, for all days after Feb. 28-March 1, use a-mean value between that 
for the particular day and for the day following. 
[Note.—The reason for choosing midnight is because half a year after 08 of the 
jist day under analysis falls at midnight, and the mean value of N to be used in the 
tidal reductions is taken as the value of N at that date.—G. H. D.] 
Jan. 1- 2 0-0265 May 1- 2 63810 Sept. 5- 6 13°1061 
5- 6 2383 5- 6 +5928 10-11 * +3709 
10-11 5031 10-11 "8576 15-16 *6357 
15-16 ‘7678 15-16 71223 20-21 “9005 
20-21 1:0326 20-21 “3871 25-26 141652 
25-26 “2974 25-26 “6519 30-31 4300 
30-31 5621 30-31 “9166 Oct. 1-2 4829 
Hep, 1— 2 “6681 June 1- 2 8:0225 5-— 6 “6948 
5- 6 “8799 5- 6 "2344 10-11 “9595 
9-10 ‘0917 10-11 4991 15-16 15-2243 
10-11 2°1446 15-16 *7639 20-21 4891 
15-16 “4094 20-21 9:0287 25-26 ‘7538 
20-21 “6742 25-26 "2934 30-31 16:0186 
25-26 “9390 30-31 “5582 Nov. 1- 2 1245 
Mary 1:9 31508 July 5-6 *8230 5- 6 "3363 
5- 6 3626 10-11 10:0878 10-11 “6011 
10-11 “6274 15-16 "3525 15-16 “8659 
15-16 “8921 20-21 6173 20-21 17:1307 
20-21 41569 25-26 *8821 25-26 “3954 
25-26 4217 30-31 11'1468 30-31 6602 
30-31 6864 Aug. 1- 2 *2527 Dec. 1- 2 ‘7131 
31-32 “7394 5- 6 4646 5- 6 9250 
Apr. 5-6 5 0042 10-11 7293 10-11 18:1897 
10-11 *2689 15-16 “9941 15-16 4545 
15-16 5337 20-21 12:2589 20-21 ‘7193 
20-21 "7985 25-26 5236 25-26 9840 
25-26 60632 30-31 “7884 30-31 19°2488 
30-31 3280 Sept. 1- 2 “8943 31-32 3018 | 
