An institvtion trigonometricall. VVherein demonstratively and perspicuously is exhibited the doctrine of the dimension of plane and sphericall triangles after the most exact and compendious way by tables both of sines, tangents, secants, and logarithmes / By Henry Gellibarnd.

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An institvtion trigonometricall. VVherein demonstratively and perspicuously is exhibited the doctrine of the dimension of plane and sphericall triangles after the most exact and compendious way by tables both of sines, tangents, secants, and logarithmes / By Henry Gellibarnd. Public Domain Mark. Source: Wellcome Collection.