 Thus, one formation is abundantly supplied with coal, another with the ores of zinc and lead, a third with materials for the manufacture of cements, and others with still different substances of economic value. Each is found in a particular geological...  Reports - Page 13by Missouri. Bureau of Geology and Mines - 1896Full view - About this book
 | Missouri. Division of Geological Survey and Water Resources - 1891 - 776 pages
...zinc and lead, a third with materials for the manufacture of cements, and others with still different substances of economic value. Each is found in a particular...prospecting would ever disclose the material sought. In obtaining information concerning each particular mineral substance, the entire subject must be carefully... | |
 | Missouri. Division of Geological Survey and Water Resources - 1891 - 188 pages
...zinc and lead, a third with materials for the manufacture of cements, and others with still different substances of economic value. Each is found in a particular geological zone, aud rarely or very sparingly elsewhere. Only within certain districts would search for a given substance... | |
 | 1895 - 590 pages
...a third with gypsum, or materials for the manufacture of cements ; and others with still different substances of economic value. Each is found in a particular...prospecting would ever disclose the material sought. An investigation of any special mineral substance necessitates a careful consideration of the entire... | |
 | Iowa Geological Survey - 1895 - 636 pages
...a third with gypsum, or materials for the manufacture of cements ; and others with still different substances of economic value. Each is found in a particular...prospecting would ever disclose the material sought. An investigation of any special mineral substance necessitates a careful consideration of the entire... | |
 | Missouri.Bureau of Geology and Mines - 1895 - 72 pages
...zinc and lead, a third with materials for the manufacture of cements, and others with still different substances of economic value. Each is found in a particular...prospecting would ever disclose the material sought. In obtaining information concerning each particular mineral substance, the entire subject must be carefully... | |
 | Iowa Geological Survey - 1918 - 916 pages
...cements, and still others with still different substances of economic value. Each is found in a particular zone and rarely or very sparingly elsewhere. Only...prospecting would ever disclose the material sought. In obtaining information concerning each particular mineral substance, the entire subject must be carefully... | |
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