## Meeting of 12 January 1912

**Location: ** Edinburgh Institution
**Chair: ** Burgess, Alexander George

**Papers: **

Donaldson, J A: "An infinite series of triangles and conics with a common pole and polar"

Edwardes, F F: "The condition that the family of surfaces (*x*, *y*, *z*, ) = 0 may be one of an orthogonal triad"

Davis, Robert Frederick: "Graphical trisection of circular arc", [Title]

**Elected: **

Donaldson, J A

Hill, John

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Index of summaries for meetings in 1911-12