140 
MR. LUBBOCK ON THE TIDES. 
Table XXI. ( g .), showing the Diurnal Inequality at London, or the Difference in 
the Interval between the Apparent Solar Time of the Moon’s Transit and the Time 
of High Water, and the Interval in Table XVI., and the Difference between the 
Height of High Water and the Height in Table XVII. 
Table XXII. (h.), showing a Comparison between the Semimenstrual Inequality at 
London in the Interval and in the Height, as deduced from theory and from the 
results of observation contained in Tables XVI. and XVII. 
Table XXIII. (/.), showing the Calendar- month Inequality in the Interval and in 
the Height of High Water, as deduced from Bernoulli’s theory and from the results 
of observation contained in Tables XVI. and XVII. See Plate I. 
Table XXIV. (j.), showing the Moon’s Parallax Inequality in the Interval and in 
the Height of High Water, as deduced from Bernoulli’s theory and from the results 
of observation contained in Table XIX. See Plate II. 
Table XXV. (&.), showing the Diurnal Inequality in the Interval and in the Height 
of High Water for the first six months of the year, for the Moon’s Transit B, p.m. 
See Plate III. 
As the London discussion contained in this paper has been made with reference to 
transit B, and the discussion of the Liverpool observations has been made with re- 
ference to transit A, it was necessary to pay attention to this circumstance in the 
comparisons on the Plates. This has been done for the present roughly, by placing 
the London corrections more to the left by half an hour. The interval corrections 
would strictly require, in extreme cases, a slight alteration, which may be obtained 
from Tables XXIII. XXV. and XXVII., given in a former paper*. 
Table XXVI., showing that part of the Diurnal Inequality in the Height of High 
Water depending on the Moon, calculated from the expression d h — B sin 2 l', as- 
suming for Parallax 57', B = 0‘5 feet. 
Table XXVII. contains the part of the Diurnal Inequality in the Height depending 
upon the Sun’s Declination, calculated from the expression 
{A) B sin 2 § cos <p log {A) = 9 - 56965. 
Table XXVIII. (/.), showing the Interval and Height of High Water at the 
London Docks with the Sun’s and Moon’s Declinations, and the Moon’s Horizontal 
Parallax, for the Mean of all the Moon’s Transits B occurring between 0 h and l h for 
every year from 1802 to 1835. 
Table XXIX. (m.), interpolated from Table XXVIII. by reducing each quantity 
to Moon’s Transit (B) 0 1 ‘ 30 m , and correcting for deviation from Mean Declinations 
and Parallax. 
Table XXX. (n.), showing the Establishment of the Port of London since 1802, 
obtained from Table XXIX. by altering the argument from Transit B to Transit F, 
and reducing it to 0 h 0 m from 0 1 ' 30 m . Moon’s Hor. Par. 57', and Decl. 15°. 
Table XXXI. Observations of High Water in May 1836. See Plate IV. 
* Philosophical Transactions, 1836, p. 255. 
