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Patterns and Drawings Relating to Models for Spherical Trigonometry

The sheets in this folder hold patterns for the following models for spherical trigonometry: Bi-Rectangular Spherical Triangle -- (B R)ST dated Jan 25-1945 Quadrantal Spherical Triangle - QST - dated ...
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Geometric Models for Spherical Trigonometry by A. Harry Wheeler and his Students Kello Kern Bland and D. Parker

Click to open image viewer. Geometric Models for Spherical Trigonometry by A. Harry Wheeler and his Students Kello Kern Bland and D. Parker CC0 Usage Conditions ApplyClick for more information. IIIF ...