Bulletin, 325-329. sayılarU.S. Government Printing Office, 1949 |
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100 sonuçtan 1-5 arası sonuçlar
Sayfa 49
... locality ; because , for example , from the State of Illinois it is possible to obtain about as good and as poor bituminous coal as is mined . The results , given in the table on the following page , show a small increase in efficiency ...
... locality ; because , for example , from the State of Illinois it is possible to obtain about as good and as poor bituminous coal as is mined . The results , given in the table on the following page , show a small increase in efficiency ...
Sayfa 57
... localities under a Heine boiler . Average Number per cent Locality , of tests . of black Alabama . Arkansas . Brazil . Florida . Illinois . Indiana . Kansas . Kentucky . Maryland . Missouri . New Mexico . Locality . smoke . Number of ...
... localities under a Heine boiler . Average Number per cent Locality , of tests . of black Alabama . Arkansas . Brazil . Florida . Illinois . Indiana . Kansas . Kentucky . Maryland . Missouri . New Mexico . Locality . smoke . Number of ...
Sayfa v
... localities . Coals of the Coal Ridge or Charleston horizon Charleston district ... Bonanza and Jenny Lind district .. Van Buren and Alma district . Huntington district ...... . Paris district ... Spadra district Philpott district ...
... localities . Coals of the Coal Ridge or Charleston horizon Charleston district ... Bonanza and Jenny Lind district .. Van Buren and Alma district . Huntington district ...... . Paris district ... Spadra district Philpott district ...
Sayfa 4
... localities may be avoided , or if such work is undertaken the chances of success or failure may be better understood by use of the information here presented . GEOGRAPHY . Position and extent of the coal field .-- The coal field herein ...
... localities may be avoided , or if such work is undertaken the chances of success or failure may be better understood by use of the information here presented . GEOGRAPHY . Position and extent of the coal field .-- The coal field herein ...
Sayfa 5
... localities also occur in some of the lower rocks , and their outcrops are found at considerable distances beyond the limits of the field as defined above . Most of these are probably not of commercial value but some of them may prove ...
... localities also occur in some of the lower rocks , and their outcrops are found at considerable distances beyond the limits of the field as defined above . Most of these are probably not of commercial value but some of them may prove ...
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Sık kullanılan terimler ve kelime öbekleri
Alaska Arkansas auriferous average basin beach beam bed rock bench Bendeleben Mountains boiler efficiency bowlders Cape Nome carbon cent Chickaloon chloritic clay clinker coal bed coal field coastal plain Collier combustion-chamber temperature creek bed curve deposits district ditch Drill hole dry coal east efficiency 72 fault feet thick formation Fort Smith fossils furnace Geological Survey geology granite gravel greenstone Gulch Hartshorne hydrogen inches Kigluaik Kigluaik Mountains Kougarok limestone lower Matanuska Matanuska River material miles mineral mining Mountains mouth Neuropteris Niukluk River Nome group Norton Bay Norton Bay regions Number of tests Ophir Creek outcrop pay streak placer gold Port Clarence pound of combustible pounds of dry probably quartz ratio reconnaissance reported River sample sand sandstone schist Seward Peninsula shaft Shale Shale roof shows slope Spadra stream surface tion tributary U. S. Geol upper valley veins
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