506 REPORT—1868. 
feet. 
ae Bia: } the coefficients for the lunar monthly tide (elliptic). 
R= 0'0316 e=69° 47’ (5°30 mean solar days). 
e “ Pewee } the coefficients for the lunar fortnightly tide (declinational). 
R= 0'0331 6=56° 50’ (2°16 mean solar days). 
eee ge, 
hes x vacet } the coefficients for the luni-solar fortnightly shallow-water tide (synodic). 
= 00960 e=211° 56’ (8°69 mean solar days). 
F =—0'1216 
R= o1270 e=253° 12’ (256°89 mean solar days). 
ee } the coefficients for the solar annual tide (elliptic and meteorological). 
G =+0'0225 | the coefficients for the solar semiannual tide (declinational and meteoro- 
H =+0'0713 logical ?). 
R= 0'0748 e=72° 29! (36°77 mean solar days). 
29. The following Tables exhibit the comparative times of maximum of 
each of the preceding tides, and the times of maximum attraction to which 
each, if genuine and astronomical, is due. 
Lunar monthly tide. Solar annual tide. 
Maximum Moon Maximum Sun 
height in height in 
caer ea Nee i (calculation). apogee, 
1864. Jan. 13 19 1863. Dec. 28 3 1864. Sept. 21 1864. July 2 
Feb. 10 2 1864. Jan. 24 9g 
Mar. g 10 Feb. 20 9 
April 4 18 Mar. 18 20 
May 2 1 April 15 14 
29 9 May 13 9 
June 25 17 June 10 3 
ree 3 . ae q a Solar semiannual tide. 
Sept. 15 16 I 12 _eomem Bie — 
ight ination, Nort 
Oct. 1340 Sept 27 17 (caleutation). be South (N. & S.)e 
Nov. 9 8 Oct. 25 6 d a 
Dec. 6 15 Nov. 22 1 1864. Feb. 14 1863. Dec. 22 8. 
1865. Jan. 2 23 Dec. 19 21 Aug. 15 1864. June 21 N. 
Lunar fortnightly tide. 
Maximum Moon at Maximum Moon at 
height maximum declination, height maximum declination, 
(calculation). North and South (N.& S.). (calculation). North and South (N. & S.). 
1864. d h 1864. d h ial 1864. d h 1864. d h Be 7 
Jan. 10 15 Jan. 620 8. 21 3 July 19 21 July 16 6 §&. 20 16 
24. 7 19 17. N.2 © Aug. 2 13 29 oO N,20 12 
Feb. 6 23 Heb, 3 «78. 20 53 16 5 Aug. 12 17 8.20 4 
20 15 16 o N.20 48 29 21 25 6 N.19 59 
Mar. 5 7 Mar. 116 §&. 20 38 Sept. 12 13 Sept. 9 1 8. 19 50 
18 23 14 7 “N, 20 32 oa) 5 21 13 N.19 46 
April 1 14 28 23 8. 20.25 Oct. 9 20 Oct. 6 7 S. 19 40 
15 6 Aprilio 16 N.20 22 DVO 18 22 N. 19 39 
28 22 25 ssw ZOurG Nov. 6 4 Noy.. 2 12 “S. 19/38 
May 12 14 May 8 x N.20 19 Ig 20 15 28. JN. aprsg 
26 6 22 10 §&. 20 20 Dec. 3 12 29 19 8S. 19 40 
June 8 22 June 4.10 N.20 21 nop wee Dec. 12 18 N,19 41 
22 1 18 19 8. 20 20 30 20 27 5 8. 19 40 
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