24 January 1940 last monthly talk of PSNS, joint with Royal Horticultural Society of Perthshire till 1946 (Proc, vol 10, ii).
Perthshire Society of Natural Science
Environment, Nature and Cultural Heritage.
24 January 1940 last monthly talk of PSNS, joint with Royal Horticultural Society of Perthshire till 1946 (Proc, vol 10, ii).