00986cam a22002531  4500001001300000003000400013005001700017008004100034010001700075035001900092040004300111042001200154043001200166050001400178100002100192245022000213260005000433300004800483490006200531490004500593650002600638651002800664700004000692s  13000052 DLC20260227111910.0780313s1860    dcuab        f000 0 eng c  as  13000052   a(OCoLC)3711828  aSmithsonian Inst. LibrarycNGenoUdDLC  apremarc  an-mx---00aQ11b.S681 aSonntag, August.10aObservations on terrestrial magnetism in Mexico.bConducted under the direction of Baron von Müller, with notes and illustrations of an examination of the volcano Popocatepetl and its vicinity.cBy August Sonntag.  a[Washington,bSmithsonian Institution,c1860]  a4 p. l., 84 p.bfront. (map) illus.c33 cm.0 aSmithsonian contributions to knowledge. [vol. XI, art. 7]0 aSmithsonian Institution publication 114. 0aGeomagnetismzMexico. 0aPopocatépetl (Mexico)1 aMueller, Ferdinand von,d1825-1896.