Bache, A. D.  1806-1867. <br/><br/>
Discussion of the magnetic and meteorological observations made at the Girard College Observatory, Philadelphia,  in 1840, 1841, 1842, 1843, 1844, and 1845. 
By A. D. Bache. 
 - [Washington,  Smithsonian Institution,  1859-65] 
 - 6 v.  diagrs.  33 cm. 
 - Smithsonian contributions to knowledge. [vol. XI, art. 4; vol. XIII, art. 5, 6, 7; vol. XIV, art. 2, 3] Smithsonian Institution publications 113, 121, 132, 162, 175, 186. .
<br/><br/> Assisted by C. A. Schott. 
<br/><br/><label>LCCN: </label>s  13000049  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geomagnetism--Observations.
<br/><br/><label>LC Class. No.: </label>Q11  / .S68 v. 11, 13, 14