The elements of physical and geometrical astronomy By David Gregory, Done into English, with additions and corrections The second ed To which is annex'd, Dr Halley's synopsis of the astronomy of cometsin two vs v 2 of 2

The 18th century was a wealth of knowledge, exploration and rapidly growing technology and expanding record-keeping made possible by advances in the printing press. In its determination to preserve the century of revolution, Gale initiated a revolution of its own: digitization of epic proportions to preserve these invaluable works in the largest archive of its kind. Now for the first time these high-quality digital copies of original 18th century manuscripts are available in print, making them highly accessible to libraries, undergraduate students, and independent scholars.
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The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to insure edition identification:
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Harvard University Houghton Library

T062621

The pagination of Vol.1 ends on p.512, and that of Vol.2 begins with p.465.

London: printed for D. Midwinter, 1726. 2v.(905p.), plates; 8°