A treatise on surveying and navigation: uniting the theoretical, practical, and educational features of these subjects (1857)
Robinson, Horatio N[elson], 1806-1867. [from old catalog] · Cincinnati, J. Ernst; Toledo, Anderson, Burr, & co. · leaf 22
20 SURVEYING Besides the numerical scale of equal parts, we have scalps vfchords, sines, and tangents, which can be constructed correspondingto any radius. Such scales of course are not scales of equal parts. Such scales are constructed in the following manner. Take CA any radius, and describe a…
Surveying · Navigation
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