Kirk, Sir John Letter from explorer John Kirk to Galton recommending that he study "the tables of Col. Boileau" [possibly A Collection of Tables, Astronomical, Meteorological, and Magnetical, Also for Determining the Altitudes of Mountains; Comparison of French and English Weights and Measures &c., of the H.E.I. Co's Magnetic Observatory, Simla, by Lieut. Col. I T Boileau?] 26 Mar 1865