£400 - £600
HAWNEY, WILLIAM - THE DOCTRINE OF PLAIN AND SPHERICAL TRIGONOMETRY: with its Application and Use in the following parts of Mathematics; viz. I. Navigation in all its kinds; as Plain Sailing, Mercator's Sailing, Middle Latitude, and Parallel Sailing. II. Astronomy; wherein all the Problems relating to the Doctrine of the Sphere are solved. III. Projection of the Sphere in Plano. IV. Geography. V. Fortification. VI. Mensuration of Heights and Distances, both accessible and inaccessible. VII. Dialling, Arithmetical and Instrumental, on all Sorts of Planes. London, R Ware, 1750. Second edition, 8vo, folding plates, numerous illustrations, diagrams and tables in the text, full contemporary calf. ESTC T126599. First published in 1725, this second edition is much rarer, with the British Library listing just 3 locations in Britain and 2 in N America
18th century manuscript inscriptions to front free end-paper, occasional faint damp stain to lower right hand corner and bottom of some leaves, but overall a good fresh clean copy, calf rubbed, short 1-inch crack to upper and lower joints, lower edge of text-block with manuscript inscription 'Hawn Trigono:'.
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