Lefroy, John Henry. 3963.52 =**E.186.7 Magnetical and meteorological observations at Lake
Athabasca and Fort Simpson, by J. H. Lefroy, and at Fort Confidence in Great Bear Lake, by Sir John Richardson. Printed by order of Her Majesty's government. London. Longman, Brown, Green & Longmans. 1855. xiv, (1), 391 pp. Tables, charts, diagrams. 8°,
 
~America, British. Meteorology and climatology.