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Statistical Studies of the Meteoritic Falls of the World: 3. Their Time Distribution *
Author(s) -
Leonard Frederick C.,
Slanin Boris
Publication year - 1941
Publication title -
contributions of the society for research on meteorites
Language(s) - English
Resource type - Journals
eISSN - 1945-5100
pISSN - 0096-2813
DOI - 10.1111/j.1945-5100.1941.tb00300.x
Subject(s) - distribution (mathematics) , statistics , mathematics , demography , mathematical analysis , sociology
This paper contains a study of all the authentic meteoritic falls of the world, 1314 in number (21 of date earlier than 1790 and 1293 of date 1790 and later), for which reasonably reliable information concerning the time of fall or find is available. By means of a series of tables and graphs, the following subjects are treated: (1) the observed falls by years; (2) the unobserved falls by years; (3) both kinds of falls by years; (4) the observed falls by months; and (5) the observed falls by hours. The average numbers of falls for the decade 1930–39 are compared with the corresponding numbers for the 150‐year interval 1790–1939. The general increase in meteoritical activity, particularly since 1920, is apparent from the material of the paper.