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pg a061a: Third annual report of the Geological Survey of Texas Publication 5235917-3.

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CHEMICAL DEPARTMENT.

REPORT OF MR. L. E. MAGNENAT.

AUSTIN TEXAS, February 8, 1892
.

Hon. E. T. Dumble, State Geologist:

DEAR SIR—I have the honor to transmit herewith a brief report of the work done in the Chemical Laboratory of the Geological Survey during the period embraced between December 13, 1890, and January 1, 1892. During that time five hundred and fifty-five analyses have been made by Messrs. J. H. Herndon, G. H. Wooten and myself.

Below is a table showing the amount and character of the work performed, not including a large number of qualitative analyses and determinations of minerals of which no official record has been kept:

Assays for gold and silver ...... ..... . . . Assays for copper .. . . . ...... ..... Assays for lead .. .. .... . .. ....... Assays for zinc .............. . Assays for platinum . .......... Assays for bismuth . .. . .... . ..... Assays for cobalt .......... Assays for uranium ....... . .......... Assays for tin ........... .......... Iron ores, unclassified, complete . ...... Iron ores, unclassified, partial ............... Hematites, complete ................... Iron ores, concretionary, complete ............. Iron ores, concretionary, partial ............. Iron ores, conglomerates, complete ............ Iron ores, conglomerates, partial ............. Iron ores, magnetites, complete .............. Iron ores, ochreous, complete ............... Ochres, complete . ................... Maganese ores, complete ................. Granites, complete .................. . Porphyries, complete ................... Porphyries, partial ...... ............. Clays, complete .. ................. . Clays, partial ..... .. ............... Soils. complete . .......... Soils, partial ..................... Greensands, complete ........ Greensands, partial .... ................ Lignites ........................ Coals ............. Mineral waters complete . . . .. .. ...... Miscellaneous analyses, complete .. ...... .. Miscellaneous analyses, partial ... ........ . .. . 210 .........17 . . . ... . . . 26 4 . . . . . . . . 12 . . . . . . . . 4 ..... 1 . . . . . . . . 1 . . .. . . . . 2 . . . . . . . . 1 ... . . . . . .19 ... . . . . . .10 . . . . . . . 2 . .. . . . 8 . . . . . 2 . . . . 8 . . . . . 4 . . . . . 7 . . . I. . . .. . . . . .. . . . 3 2 6 .. . . .. . 16 2 . .. . .. .. 2 .. . . . . . . ..16 4 ... . . . . . 4 . . . . .. .. .25 5 ....-. .. 5 10 .... . . .. . . . 10 . . . . . . . .. .28 . .. . . . .. .23 9 . . .. . . . . .12 . .. .. . . .. .49 . . . . . .555 Total ........

Very respectfully,

L. E. Magnenat,
Chemist in Charge.

 

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