Mathematical Inftrument Maker to His Majefty, and Optician to His Royal
Highness the Prince of Wales.

VOL. IV.

LONDON:

PRINTED BY R. HINDMARSH,

PRINTER TO HIS ROYAL HIGHNESS THE PRINCE OF WALES,
OLD-BAILEY.

SOLD by the AUTHOR, No. 60, FLFET STREET.

1794.

6 to 38

Tables of the diameters, distances, &c. of the planets 39

LECTURE XXXVIII.

Explanation of the feasons, &c. on the Copernican

system

Of the shape or figure of the earth

Of the diurnal motion of the earth

Of the phenomena occafioned by the diurnal motion

Of the annual motion of the earth

Of the apparent motion of the fun

Of the feafons of the year

LECTURE XXXIX.

An explanation of the phenomena of the planets accord-

ing to the Copernican system

Of the inferior planets

49

49

53

56

59

62

68

80

83 to 94