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IND-IIA-F217-I07 · Item · 26-11-1914
Part of Correspondence regarding meteorology during 1898 to 1925

The letter is from John Evershed to the Director-General of Observatories, Simla, enclosing the specifications for the mirror for the new spectroheliograph. It states that the H.Grubb, Cooke and Hilger quote £15 for a mirror of its size.

Evershed, John