Discussion of magnetic and meteorological observations made at Girard College Observatory, Philadelphia, in 1840, 1841, 1842, 1843, 1844, and 1845
Contributors: Bache, A. D. 1806-1867.; Girard College.
Publisher: [s.n.]
Published: 1859
Place of publication: Washington, D.C
Format: Microform
Subjects: Magnetism.; Meteorology.