Rare Books
Horometria: or the compleat diallist: : wherein the whole mystery of the art of dialling is plainly taught three several wayes; two of which are performed geometrically by rule and compasse onely: and the third instrumentally, by a quadrant fitted for that purpose. With the working of such propositions of the sphere, as are most usefull in astronomie and navigation, both geometrically and instrumentally
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