Page:Proceedings of the Royal Society of London Vol 60.djvu/497

464 Table "VI.— “ Monthly” Frequencies.

Day. Anomalistic, from apogee. Tropical, from 0° decl. N. to S. Nodical, from ascending node. Synodic, from full moon. 1 0-919 1 -077 0-937 1 -064 2 0-945 1 -072 0-925 1 -081 3 0-976 1 -107 0-998 1 -029 4 0-980 1 -069 1 032 1 -ooo 5 0 -999 1 -052 1 -056 0-961 6 1 013 1 -040 1-068 0-963 7 1-061 1-006 1 -103 0-964 8 1-033 0 -902 1 -045 0 -984 9 1-058 0-928 1 -051 0 -980 10 1 0 6 4 0 930 1 -025 1 -002 11 1-023 0-945 1 -050 0-999 12 1-002 0 -952 1-047 0-983 13 1 -005 1 -020 1 -037 1 -009 14 1 -012 1-000 1011 1-029 15 1 -021 0-978 0-964 1 -030 16 1-048 0-982 0 -901 1 -042 17 T -061 0-974 0-858 1 -032 18 1-022 0-936 0-896 1 -039 19 1 -oio 0-969 0-901 1 -039 20 1-004 0 -967 0 -939 1 -005 21 1 -006 0 -964 0-981 0 -985 22 1 -ooo 0-975 1-018 0 -965 23 1 -017 0-991 1-011 0-918 24 1 004 0-987 1 -044 0 -905 25 0 -952 1 -020 1 -028 0-939 26 0-955 1 -035 1 -028 0-945 27 0-920 1 -054 0 -992 0-973 28 0-906 1 -086 0 -994 1 -020 29 — — _ 1-045 30 — — — 1-060

first four harmonics, according to a form ula identical w ith th at already given, due regard being paid to the different periods and the tim e u n it involved. The results are given in Table V II, the phase coefficients being given in days.

Table V II.—Am plitudes and Phases. “ Month.” Ci. c 2. c4. «!• a 2.

Anomalistic. .. 46-2 47-8 12-9 16-5 21 -7 8-5 5-2 6-2 ; Tropical........... 54-7 40-7 23-1 17-2 6-0 1 -9 7-9 2-4 j Nodical............. 49-5 55-2 28-3 17 -6 1 -2 7-9 6-9 2-7 i I Synodic............. 11-0 52 -1 24-5 4 -7 13-7 2-7 7-7 0-6 !

A study of these tables discloses the presence of certain features which have no raison d’etre on any rational theorv of tidal stress.