Chair: Burgess, Alexander George
Finlayson, William: "The "O" circle of the co-axial triad through the vertices of a triangle, and the "O" locus for a cyclic quadrangle", [Title]
Horsburgh, E M: "A simple linkage for describing equal areas"
Horsburgh, E M: "Model of a well-known deformable triangular linkage", [Title]
Horsburgh, E M: "Graphical harmonic analysis", [Title]
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Index of summaries for meetings in 1912-13