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Of the Moon's Motion, of its Phases, and of

NOTE-BY THE TRANSLATOR.

THE reader will find the angular measures and measures of time used by the author reduced in the margin to the sexigesimal system adopted in this country; this was thought better than altering the text of an original work of such import

ance.

ERRATA.

VOL. I. r. 126, for sexigonal, read sexigesimal.
VOL. II.P. 93, line 2, for 1209 read 2o and its reduction 19 48'.

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