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5451. Coal. Moisture losses in sampling coal; by H. M. Cooper, N. H. Snyder, and R. F. Abernethy.

Corporate/Agency Authors:: Mines Bureau and Interior Department
Publisher:: Mines Bureau
Date:: Dec. 1942
SuDoc number:: I 28.23:3670

5452. Dolomite-base refractories; by Alvin Schallis.

Corporate/Agency Authors:: Mines Bureau and Interior Department
Publisher:: Mines Bureau
Date:: Dec. 1942
SuDoc number:: I 28.27:7227

5453. Electrostatic Separator for fine powders [with list of literature]; by Foster Fraas and Oliver C. Ralston.

Corporate/Agency Authors:: Mines Bureau and Interior Department
Publisher:: Mines Bureau
Date:: Dec. 1942
SuDoc number:: I 28.23:3677

5454. Explosives Division. Annual report of Explosives Division, fiscal year 1942; by Wilbert J. Huff.

Corporate/Agency Authors:: Mines Bureau and Interior Department
Publisher:: Mines Bureau
Date:: Dec. 1942
SuDoc number:: I 28.23:3669

5455. Explosives. Active list of permissible explosives and blasting devices approved prior to June 30, 1942; prepared by J. E. Tiffany and Z. C. Gaugler.

Corporate/Agency Authors:: Mines Bureau and Interior Department
Publisher:: Mines Bureau
Date:: Dec. 1942
SuDoc number:: I 28.23:3665

5456. Haulage. Some haulage and hoisting hazards in western mines; by E. H. Denny and H. B. Humphrey.

Corporate/Agency Authors:: Mines Bureau and Interior Department
Publisher:: Mines Bureau
Date:: Dec. 1942
SuDoc number:: I 28.27:7228

5457. Indian education, fortnightly field letter of Education Division, Office of Indian Affairs, Washington, D. C., [no.] 79 and 80; Dec. 1 and 15, 1942.

Corporate/Agency Authors:: Indian Affairs Office and Interior Department
Publisher:: Indian Affairs Office
Date:: Dec. 1 and 15, 1942
SuDoc number:: I 20.26:79,80

5458. Lithium. Marketing lithium minerals; by Lawrence G. Houk.

Corporate/Agency Authors:: Mines Bureau and Interior Department
Publisher:: Mines Bureau
Date:: Dec. 1942
SuDoc number:: I 28.27:7225

5459. Magnesium fires. Extinguishing magnesium fires with hard pitch derived from coal tar; by H. R. Brown, Irving Hartmann, and John Nagy.

Corporate/Agency Authors:: Mines Bureau and Interior Department
Publisher:: Mines Bureau
Date:: Dec. 1942
SuDoc number:: I 28.23:3672

5460. Metal mines. Stemming in metal mines, progress report 5, Comparison of dust and gases produced from blasting charges of dynamite in drill holes, in bombs, and in mud-cap shots; by John A. Johnson and Wing G. Agnew.

Corporate/Agency Authors:: Mines Bureau and Interior Department
Publisher:: Mines Bureau
Date:: Dec. 1942
SuDoc number:: I 28.23:3673

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