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Aftronomy, Dialling, and Geography.
By HENRY WILSON.
I. O N D O N : " - }.
*Tnay be thought Surpri§ song, if not accounted to great Presumption, to S. Dedicate so small a Treatise to so * honourable and useful a Corporation. But my Hopes that this plain, tho concise Tiece of Trigonometry, well applied, may at least contribute to the qualifyin the Studious for some of #: PublickMathematical Services, to A 2. which