An Introduction to Plain Trigonometry: With Its Application to Heights and Distances. . By

Воспроизведено в оригинальной авторской орфографии издания 1792 года (издательство "printed and sold by M . Heavisides, for the author; by Messrs. Law and Son; and Mr. D . Taylor, London; Mr . Pine, Bristol; Messrs . Wilson and Spence , York; and Mr . Nicholson , Barnardcastle").