Spherical trigonometry, by W. C. Brenke. Chapters XI and XII of "Plane and spherical trigonometry." Brenke, William Charles, 1874- Spherical trigonometry. QA535 .B68 514 BRP include index "Answers to the odd numbered exercises": p. 49. New York, The Dryden Press 1943. 1943. 1943 Text viii, 71, 27 p. : eng The Dryden press Mathematics publications; general editor, E. R. Smith.