The Elements of Astronomy, Physical and Geometrical. By David Gregory ... Done Into English, With Additions and Corrections. To Which is Annex’d, Dr. Halley’s Synopsis of the Astronomy of Comets. In t

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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.