Thomas Hockey; Katherine Bracher; Marvin Bolt; Virginia Trimble; Richard Jarrell; JoAnn Palmeri; Jordan D. Marché; Thomas Williams; F. Jamil Ragep (18 September 2007). Biographical Encyclopedia of Astronomers. Springer. pp. 411–. ISBN978-0-387-30400-7.
Gautier, Alfred (1852). "Notice sur quelques recherches récentes, astronomiques et physiques, relative aux apparences que présente le corps du soleil" [Notice on some recent astronomical and physical investigations regarding appearances that the body of the sun shows]. Bibliothèque Universelle de Genève: Archives des sciences physiques et naturelles (in French). 20: 177–207, 265–282. On pp. 189–190, after discussing Schwabe's discovery of the solar cycle, Gautier presents Lamont's findings on the relation between the solar cycle and the periodic variations in the magnetic declination. Gautier mentions that the Austrian astronomer Augustin Reslhuber (1808–1875) confirmed Lamont's findings. (Reslhuber's confirmation appeared in: Reslhuber, A. (1852). "Ueber die vom Dr. Lamont beobachtete zehn-jährige Periode in der Größe der täglichen Bewegung der Declinationsnadel" [On the ten-year period in the magnitude of the daily movement of the declination needle, which was observed by Dr. Lamont]. Annalen der Physik. 2nd series (in German). 85 (3): 412–420. doi:10.1002/andp.18521610311.)
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Gautier, Alfred (1852). "Notice sur quelques recherches récentes, astronomiques et physiques, relative aux apparences que présente le corps du soleil" [Notice on some recent astronomical and physical investigations regarding appearances that the body of the sun shows]. Bibliothèque Universelle de Genève: Archives des sciences physiques et naturelles (in French). 20: 177–207, 265–282. On pp. 189–190, after discussing Schwabe's discovery of the solar cycle, Gautier presents Lamont's findings on the relation between the solar cycle and the periodic variations in the magnetic declination. Gautier mentions that the Austrian astronomer Augustin Reslhuber (1808–1875) confirmed Lamont's findings. (Reslhuber's confirmation appeared in: Reslhuber, A. (1852). "Ueber die vom Dr. Lamont beobachtete zehn-jährige Periode in der Größe der täglichen Bewegung der Declinationsnadel" [On the ten-year period in the magnitude of the daily movement of the declination needle, which was observed by Dr. Lamont]. Annalen der Physik. 2nd series (in German). 85 (3): 412–420. doi:10.1002/andp.18521610311.)
