Science, Том 23John Michels (Journalist) American Association for the Advancement of Science, 1894 Since Jan. 1901 the official proceedings and most of the papers of the American Association for the Advancement of Science have been included in Science. |
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Стр. 23
... glauconitic or Claiborne Tertiary . In a recent report on the iron ores of Arkansas Dr. Penrose again refers to the east Texas ores as follows : " In eastern Texas , where the geologic position of the Tertiary iron ores is more easily ...
... glauconitic or Claiborne Tertiary . In a recent report on the iron ores of Arkansas Dr. Penrose again refers to the east Texas ores as follows : " In eastern Texas , where the geologic position of the Tertiary iron ores is more easily ...
Стр. 24
... glauconitic beds . That these glauconitic beds extended many miles farther north of the positions in which we now find the main bodies there can be no doubt . Not only the points already mentioned , but many others not nearly so ...
... glauconitic beds . That these glauconitic beds extended many miles farther north of the positions in which we now find the main bodies there can be no doubt . Not only the points already mentioned , but many others not nearly so ...
Содержание
Meeting of the Iowa Academy of Sciences | 10 |
ROUGHING IT WITH AN ECLIPSE PARTY | 42 |
ESTERBROOKS | 56 |
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