Elements of trigonometry, plane and spherical New York : Sheldon and company, 1884. 88 pages
Nova Scotia Archives Library - use request slip - LTT74 O4
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please note : not all titles are available on the Internet Archive17827
Elementary geometry2nd ed New York : Sheldon and co., 1885. 333 pages
Nova Scotia Archives Library - use request slip - LTG296 O4 1885
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please note : not all titles are available on the Internet Archive17251
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