 | Geology - 1906 - 1190 pages
...included in the sample, except partings or binders of more than 0.25 inch in thickness and except all lenses or concretions of sulphur or other impurities greater than '2 inches in maximum diameter and Or> inch in thickness. •1. The sample may Urgent to the laboratory as it is... | |
 | Geological Survey (U.S.) - Geology - 1906 - 330 pages
...included in the sample, except partings or binders over one-fourth inch in thickness, and except all lenses or concretions of sulphur or other impurities greater than '2 inches in maximum diameter and one-half inch in thickness. 4. The sample may be sent to the laboratory as it... | |
 | Geological Survey (U.S.), Samuel Franklin Emmons - Geology, Economic - 1906 - 542 pages
...included in the sample, except partings or binders of more than 0.25 inch in thickness and except all lenses or concretions of sulphur or other impurities greater than 2 inches in maximum diameter and 0.5 inch in thickness. 4. The sample may be sent to the laboratory as it is cut,... | |
 | Geological Survey (U.S.) - Geology - 1906 - 552 pages
...included in the sample, except partings or binders of more than 0.2.5 inch in thickness and except all lenses or concretions of sulphur or other impurities greater than 2 inches in maximum diameter and 0.5 inch in thickness. 4. The sample may be sent to the laboratory as it is cut,... | |
 | William Albert Noyes - Chemistry - 1906 - 738 pages
...included in the sample, except partings or binders of more than 0.25 inch in thickness, and except all lenses or concretions of sulphur or other impurities greater than 2 inches in maximum diameter and 0.5 inch in thickness. (4) The sample may be sent to the laboratory as it is cut,... | |
 | Geological Survey (U.S.) - Geology - 1907 - 612 pages
...included in the sample, except partings or binders more than three-eighths of an inch in thickness, and lenses or concretions of sulphur or other impurities greater than 2 inches in maximum diameter and one-half inch in thickness. If the sample is wet it should be taken out of the... | |
 | Thomas Nelson Dale - Granite - 1908 - 458 pages
...included in the sample, except partings more than tliree-eighths of an inch in thickness, and lenses and concretions of sulphur or other impurities greater...The coal thus obtained was pulverized sufficiently fine to pass through a sieve of half-inch mesh, and after thoroughly mixing was divided into quarters,... | |
 | Charles Willard Hayes, Geological Survey (U.S.) - Geology - 1908 - 172 pages
...encountered in the cut, except partings or binders more than three-eighths of an inch in thickness and lenses or concretions of sulphur or other impurities greater than 2 inches in maximum diameter and one-half inch in thickness. Care should be exercised to keep the groove of uniform... | |
 | Geological Survey (U.S.) - Geology - 1909 - 118 pages
...included in the sample, except partings more than three-eighths of an inch in thickness, and lenses and concretions of sulphur or other impurities greater...The coal thus obtained was pulverized sufficiently fine to pass through a sieve of half-inch mesh, and after thoroughly mixing was divided into quarters,... | |
 | 1909 - 1288 pages
...as these impurities are included or rejected in the ordinary operation of the mine. Usually parting? more than three-eighths of an inch thick and lenses or concretions of "sulphur" or other impurities more than two inches in maximum diameter and one-half inch thick are excluded, if in the judgment of... | |
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... sulphur or other impurities greater than 2 inches in maximum diameter and one-half inch in thickness. 
