Observations on terrestrial magnetism in Mexico Conducted under the direction of Baron von Müller, with notes and illustrations of an examination of the volcano Popocatepetl and its vicinity Sonntag, August. creator Mueller, Ferdinand von 1825-1896 text dcu Washington Smithsonian Institution 1860] 1860 monographic eng
print
4 p. l., 84 p. front. (map) illus. 33 cm. By August Sonntag. n-mx--- Geomagnetism Mexico Popocatépetl (Mexico) Q11 .S68 Smithsonian contributions to knowledge. [vol. XI, art. 7] Smithsonian Institution publication 114 s 13000052 Smithsonian Inst. Library 780313 20260227111910.0 s 13000052