[Magnetism, Earth] Lamont, J. (von). Untersuchungen über die Richtung und Stärke des Erdmagnetismus

an verschiedenen Puncten des südwestlichen Europa im allerhöchsten Auftrage seiner Majestät des Königs Maximilian II. von Bayern. Munich, F.S. Hübschmann, 1858, 198,CXV,(2) p., w. 13 lithogr. plates, cont. cl. w. paper letterpiece on spine, 4to. A bit foxed. Joints splitting, top of spine worn. W. mounted printed bookplate on inside frontcover, stating that on behalf of the mentioned king, half of the edition is meant for scientific institutes and for a few scientists of royal observatories, this bookplate filled-out in pen for "Die Sternwarte in Leijden" (also w. its library stamp and "doublet" on verso title-p.). Poggendorff I, 1362: DSB, VII, 607/9: "A major result of his investigation of the earth's magnetism was the discovery that magnetic variations occur in periods of approximately ten years, which is the same time span that Schwabe found about 1843 for the appearance and frequency of sunspots." Darmstaedter i.l.c.; Balmer, Beiträge 221/31. Added: J.E.V. Boas, Ohrknorpel und äußeres Ohr der Säugetiere. Ein vergeleichend-anatomische Untersuchung, Copenhagen, 1912, w. 25 (fold.) lithogr. plates, 4to).

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