MR. LUBBOCK ON TIDE OBSERVATIONS. 297 



Index to the Tables formed from Mr. Hutchinson's Observations, 



In forming these Tables it has been assumed that the Observations were recorded in 

 Apparent Solar Time. The Time of the Moons Transit at Greenwich, which constitutes 

 the principal argument of the Tables, is always given in Apparent Solar Time. 



Table I., showing the Interval between the Apparent Solar Time of the Moon's 

 Transit and the Time of High Water, and the Height of High Water at the Liver- 

 pool Old Docks (as recorded by Mr. Hutchinson), corresponding to the Apparent 

 Solar Time of the Moon's Transit, in each month of the year. (If Mr. Hutchinson's 

 clock was regulated according to mean solar time, the interval must be diminished 

 by the equation of time given at foot of each month.) 



Table II. (Interpolated from Table I.), showing the Interval between the Apparent 

 Solar Time of the Moon's Transit and the Time of High Water at Liverpool Old 

 Docks, for each month in the year. 



Table III. (Interpolated from Table I.), showing the Height of High Water at 

 Liverpool Old Docks, corresponding to the Apparent Solar Time of the Moon's 

 Transit, in each month of the year. 



Table IV., showing the Difference in the Interval between the Apparent Solar 

 Time of the Moon's Transit and the Time of High Water, and the Mean Interval, 

 for every month in the year. 



Table V., showing the Difference in the Height of High Water and the Mean 

 Height for every month in the year. 



Table VI., showing the Interval between the Apparent Solar Time of the Moon's 

 Transit and the Time of High Water, and the Height of High Water at the Liver- 

 pool Old Docks, corresponding to the Apparent Solar Time of the Moon's Transit, 

 for every minute of her Horizontal Parallax. 



Table VII. (Interpolated from Table VI.) 



Table VIII., showing the Difference in the Interval between the Time of the Moon's 

 Transit and the Time of High Water, and the Interval corresponding to fifty-seven 

 minutes of the Moon's Horizontal Parallax. 



Table IX., showing the Difference between the Height of High Water and the 

 Height corresponding to fifty-seven minutes of the Moon's Horizontal Parallax. 



Table X., showing the Interval between the Apparent Solar Time of the Moon's 

 Transit and the Time of High Water, and the Height of High Water at the 

 Liverpool Old Docks, corresponding to the Apparent Solar Time of the Moon's 

 Transit, for every three degrees of her Declination north and south. The Equation 

 of Time to be added to Apparent Time. (In forming this Table, it has been assumed 

 that Mr. Hutchinson's clock was regulated according to apparent solar time ; if it 

 was regulated according to mean solar time, the interval must be diminished by the 

 equation of time given in the third column.) 



2 q2 



