An edition of Observations and investigations made at the Blue Hill Meteorological Observatory, Massachusetts, U.S.A. in the years 1906, 1907 and 1908, under the direction of A. Lawrence Rotch (1911)

Observations and investigations made at the Blue Hill Meteorological Observatory, Massachusetts, U.S.A. in the years 1906, 1907 and 1908, under the direction of A. Lawrence Rotch

By Abbott Lawrence Rotch,Edward C. Pickering