MR. LUBBOCK ON THE TIDES. 
135 
Table XXVI. 
Showing - that part of the Diurnal Inequality in the Height of High Water de- 
pending on the Moon, calculated from the expression d h = B sin 2 S', assuming 
for Parallax 57', B = 0 - 5 feet. 
d h. 
Moon’s 
Declina- 
tion. 
Moon’s Horizontal Parallax . 
54 '. 
55 '. 
57 '. 
59 '. 
61 '. 
3 
•04 
•05 
•05 
•06 
•06 
6 
■09 
■09 
•10 
•11 
•12 
9 
•13 
•14 
•15 
•17 
•18 
12 
•17 
•18 
•20 
•22 
•24 
15 
•21 
•22 
•25 
•27 
•30 
18 
•25 
•26 
•29 
•32 
•35 
21 
•28 
•30 
•33 
•37 
•40 
24 
•31 
•33 
•37 
•40 
•44 
27 
•34 
•36 
•40 
•44 
•48 
30 
•37 
•39 
•43 
•47 
•51 
For Moon’s Upper Transit the correction in the above Table has the same sign as 
the Declination. For the Lower Transit it has a contrary sign. 
This Table was originally calculated for an hourly variation of <p, and for a Mean 
Parallax from the expression d h = B sin 2 l cos ^ ; but it being found that as long 
as the factor B was less than unity, cos ^ might always be considered equal to 1, it 
was thought preferable to Tabulate it in the above form, which admits of B varying 
as the cube of the Moon’s Parallax. 
Table XXVII. 
The following Table contains the part of the Diurnal Inequality in the Height 
depending upon the Sun’s Declination, calculated from the expression 
{A) B sin 2 l cos <p log (A) = 9 - 56965. 
<?■ 
Sun’s Declination . 
<?■ 
3 °. 
6 °. 
9 °. 
12 °. 
15 °. 
18 °. 
21 °. 
24 °. 
0 
+ -02 
+ -04 
+ -06 
+ -08 
+ -10 
+ 11 
+ - 13 
+ -14 
360 
15 
+ -02 
+ -04 
4 - -06 
+ -08 
+ -09 
+ 'll 
+ -13 
+ -14 
345 
30 
+ -02 
+ -04 
+ -05 
+ -07 
+ -09 
+ -10 
+ -12 
+ - 13 
330 
45 
+ -02 
+ -03 
+ -05 
+ -06 
+ -08 
+ -09 
+ ’ll 
+ "12 
315 
60 
+ -01 
+ -03 
+ -04 
+ -05 
+ -06 
+ -07 
+ -08 
+ -09 
300 
75 
+ -01 
+ -02 
4 - -02 
+ -03 
+ -04 
+ -04 
+ -05 
+ -06 
285 
90 
•00 
•00 
•00 
•00 
•00 
•00 
•00 
•00 
270 
105 
- -01 
- -02 
- 02 
- -03 
- -04 
- -04 
- -05 
- -06 
255 
120 
- -01 
- -03 
- -04 
- -05 
- -06 
- -07 
- -08 
- -09 
240 
135 
- -02 
- -03 
- -05 
- -06 
- -08 
- -09 
- -11 
- -12 
225 
150 
- -02 
- -04 
- -05 
- -07 
- -09 
- -10 
- -12 
- -13 
210 
165 
- -02 
- -04 
- -06 
- -08 
- -09 
- 11 
- -13 
- 14 
195 
180 
- -02 
- -04 
- -06 
- -08 
- 10 
- 11 
- -13 
- -14 
180 
