CONTENTS

TO THE

SECOND VOLUME.

Explanation of the Tables

TABLE I.

To convert Time Longitude

TABLE II.TABLE III.

Page T41ib.il>.

To reduce Longitude to Time Depression of the Horizon

TABLE IV.

Dip of the Sea , at different Distances from the Observer - - ib.

TABLE V.

Correction of the of the Sun in Altitude - - - 42

TABLE VI.

Mean Astronomical Refraction - - - - ib,

TA BLE VII.

Parallax of the Sun in Altitude - - - ib.

TABLE VIII.

Correction of the mean Refraction - - 43

TABLE IX.

Correction of the Moon ’s apparent Altitude - - - .44

TABLE X.

To reduce the true Altitude of the Sun to its apparent Altitude' - 53

TABLE XI.

To reduce the true Altitude of the Moon to its apparent Altitude - ;i)

TABLE XII.

To reduce the true Altitude of a fixed Star to its apparent Altitude - ib.

TABLES XIII. XIV. XV. and XVI.

To reduce the Declination of the Run to any given Meridian, and to any

given Time under that Meridian - - - 55

TABLE XVII.

For selecting a proper Star from which the Moon ’s Distance ought to be observed,that as little as possible of the Moon ’s proper Motion may be lost - 56

TABLE XVIII.

To reduce the right Ascension of the Sun to any given Meridian, and to any givenTime under that Meridian - - - - 5T

TABLE XIX.

"^ 0 Induce the Declination, Right Ascension , Horizontal Parallax, and Semidiameterot the Moon , to any given Meridian, and to any given Time under that Meridian 50

TABLE XX.

To reduce the Time of the Moon’s Passage over the Meridian of Greenwich to thelime of its Transit over any other Meridian - . 64