The Description, Nature and General Use, of the Sector and Plain-Scale: Briefly and Plainly Laid Down. as Also a Short Account of the Uses of the Lines of Numbers, Artificial Sines and Tangents

The Description, Nature and General Use, of the Sector and Plain-Scale: Briefly and Plainly Laid Down. as Also a Short Account of the Uses of the Lines of Numbers, Artificial Sines and Tangents