Science, Volume 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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Page 23
... 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 defined than in Arkansas , two principal divisions of 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 defined than in Arkansas , two principal divisions of the ...
Page 73
... IRON RANGE . BY E. P. JENNINGS , IRONWOOD , MICH . THE discovery and development of this new source of iron ore within the last two years presents many points of interest . The deposits differ from all others in the Lake Superior ...
... IRON RANGE . BY E. P. JENNINGS , IRONWOOD , MICH . THE discovery and development of this new source of iron ore within the last two years presents many points of interest . The deposits differ from all others in the Lake Superior ...
Page 89
... iron ore , so that a pound or two of coal produces a pound of metallic iron . The oxide of aluminium defies such easy pro esses , and requires a temperature vastly greater than the fiery iron furnace . This is obtained by electric ...
... iron ore , so that a pound or two of coal produces a pound of metallic iron . The oxide of aluminium defies such easy pro esses , and requires a temperature vastly greater than the fiery iron furnace . This is obtained by electric ...
Contents
Meeting of the Iowa Academy of Sciences | 10 |
ROUGHING IT WITH AN ECLIPSE PARTY | 42 |
ESTERBROOKS | 56 |
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