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" The importance of the points indicated in the foregoing paragraph is shown by the difference between the analyses given below. The specimens were taken and analyzed at widely separated times and by different persons, it is true, but they were unquestionably... "
Bulletin of the United States Geological Survey - Seite 15
von Geological Survey (U.S.) - 1907
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Chemical News and Journal of Industrial Science, Band 78

1898 - 356 Seiten
...— as seems probable — only that re* maining above 100° C. The specimens were taken and analysed at widely separated times and by different persons,...of all the elements shown by the second analysis. Another instance of similar kind is given below. Here, July 22, 1898. ! I Elementary Chemistry. again,...
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Analyses of Rocks, with a Chapter on Analytical Methods ..., Ausgabe 147

Frank Wigglesworth Clarke, William Francis Hillebrand - 1897 - 342 Seiten
...110° C 3 2. 76 2.61 CO. ^ 1.82 P.,O5 1.75 S03 .06 F .44 Cl .03 Less O for F 99.58 .100. 40 .19 100. 21 The specimens were taken and analyzed at widely separated...of all the elements shown by the second analysis. Another instance of similar kind is given below. Here, again, certain differences are explainable by...
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Survey of the Northwestern Boundary of the United States, 1857-1861

Marcus Baker - 1900 - 350 Seiten
...the foregoing paragraph is shown by the difference between the analyses given on the following page. The specimens were taken and analyzed at widely separated...of all the elements shown by the second analysis. a A still more recent analysis of another of the series of rocks of which this is an example has show»,...
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The Areas of the United States, the States, and the ..., Ausgaben 302-307

Henry Gannett - 1906 - 644 Seiten
...point ol on experienced petrographer.ee* ll'ii.iliiiigton, II. S., Manual of the Chemica\ \r\a\va\B oV The importance of the points indicated in the foregoing...second analysis. Analyses of specimens taken from the saint rock mass at different dales. 13 A still more recent analysis of another oi the series of rocks...
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The Analysis of Silicate Ad Carbonate Rocks

William Francis Hillebrand - 1907 - 212 Seiten
...in favor of greater completeness in rock and mineral analysis made for purely scientific purposes. a a For a further presentation of this subject from...taken from the same rock mass at different dates. o A still more recent analysis of another of the series of rocks of which this is an example has shown...
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Results of Spirit Leveling in Illinois, 1896 to 1908, Inclusive

Samuel Stinson Gannett, David Henry Baldwin - 1910 - 490 Seiten
...favor of greater completeness in rock and mineral analysis made for purely scientific purposes." • For a further presentation of this subject from the...analysis. Analyses of specimens taken from the same rod: mass at different dates. « A still more recent analysis of another oi the series of rocks of...
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The Analysis of Silicate and Carbonate Rocks: A Revision of Bulletin 305

William Francis Hillebrand - 1910 - 252 Seiten
...mineral analysis made for purely scientific purposes.0 a For a further presentation of this sub;ect from the view point of an experienced petrographer,...second analysis. Analyses of specimens taken from the stme rod: mass at different dales. o A still more recent analysis of another of the series of rocks...
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Bibliography of North American Geology for 1918 with Subject Index

John Milton Nickles - 1919 - 586 Seiten
...experienced petrosrrapher, sec WasUiugtoii, US, Munuul of the chemical analysis of rocks, 1910, pp. 7-17 specimens were taken and analyzed at widely separated...taken from the same rock mass at different dates. o A still more recent analysis of another of the series of rocks of which this is an example has shown...
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Bulletin

1919 - 304 Seiten
...in favor of greater completeness in rock and mineral analysis made for purely scientific purposes. 1 The importance of the points indicated in the foregoing...taken from the same rock mass at different dates. 6 From the fact that repeated determinations of the iron oxides in this and related rocks from the...
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