The Online Books Page

Books by H. H. Schrenk:

Books in the extended shelves:

• Schrenk, H. H. (Helmuth Herman), 1902-: Acrolein as a warning agent for detecting leakage of methyl chloride from a multiple refrigeration system (United States Bureau of Mines, 1930), also by F. A. Patty, W. P. Yant, and United States Bureau of Mines (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Air pollution in Donora, Pa. (Federal Security Agency, Public Health Service, Bureau of State Services, Division of Industrial Hygiene, 1949) (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Air pollution in Donora, Pa.; epidemiology of the unusual smog episode of October 1948 (Federal Security Agency, Public Health Service, Bureau of State Services, Division of Industrial Hygiene, 1949) (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Bureau of Mines midget impinger (U.S. Dept. of the Interior, Bureau of Mines, 1939), also by Florence L. Feicht (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Bureau of Mines midget impinger for dust sampling (U.S. Dept. of the Interior, Bureau of Mines, 1937), also by J. B. Littlefield and Florence L. Feicht (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: The "carbon-oxygen complex" as a possible initiator of explosions and formation of carbon monoxide in compressed-air systems (U.S. Dept. of the Interior, Bureau of Mines, 1949), also by H. W. Busch and L. B. Berger (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Colorimetric determination of low concentrations of carbon monoxide by use of a palladium chloride-phosphomolybdic acid-acetone reagent (U.S. Dept. of the Interior, Bureau of Mines, 1944), also by B. D. Polis and L. B. Berger (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Control of dust from blasting by a spray of water mist (United States Bureau of Mines, 1938), also by Carlton E. Brown (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Control of silicosis hazard by substitution of quartz-free or low-quartz material for sand under mine locomotives (U.S. Dept. of the Interior, Bureau of Mines, 1944), also by Carlton E. Brown and United States Bureau of Mines (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Danger from carbon monoxide in the home (U.S. Dept. of the Interior, Bureau of Mines, 1943), also by Lawrence Bursley Berger (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Determination by the dropping-Mercury-electrode procedure of lead, cadmium, and zinc in samples collected in industrial-hygiene studies (U.S. Dept. of the Interior, Bureau of Mines, 1942), also by Florence L. Feicht and Carlton E. Brown (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Determination of sulfur dioxide in air by means of the midget impinger (U.S. Dept. of the Interior, Bureau of Mines, 1948), also by S. J. Pearce (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Determination of the oxides of nitrogen by the phenoldisulfonic acid method (U.S. Dept. of the Interior, Bureau of Mines, 1943), also by Robert L. Beatty and Lawrence Bursley Berger (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Dilution of stack effluents. (U. S. Govt. print. off., 1944), also by G. E. McElroy, L. B. Berger, and Carlton Ernest Brown (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Dust sampling with the Bureau of Mines midget impinger : using a new hand-operated pump (U.S. Dept. of the Interior, Bureau of Mines, 1938), also by J. B. Littlefield (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Effect of angle of drilling on dust dissemination (U.S. Dept. of the Interior, Bureau of Mines, 1938), also by Carlton E. Brown (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Effect of the state of oxidation on the toxicity of an element (1928) (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Efficiency of impingers for collecting lead dusts and fumes (U.S. Dept. of the Interior, Bureau of Mines, 1938), also by J. B. Littlefield and Florence L. Feicht (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Interpretation of permissible limits in the breathing of toxic substances in the air (U.S. Dept. of the Interior, Bureau of Mines, 1948), also by United States Bureau of Mines (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Konimeter (U.S. Dept. of the Interior, Bureau of Mines, 1938), also by J. B. Littlefield, C.E. Brown, and United States Bureau of Mines (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Laboratory equipment for the analysis of mine atmospheres (U.S. Dept. of the Interior, Bureau of Mines, 1948), also by L. B. Berger and United States Bureau of Mines (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: List of respiratory protective devices approved by the Bureau of Mines (U.S. Dept. of the Interior, Bureau of Mines, 1943) (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: List of respiratory protective devices approved by the Bureau of Mines (U.S. Dept. of the Interior, Bureau of Mines, 1948), also by United States Bureau of Mines (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: List of respiratory protective devices approved by the U.S. Bureau of Mines (U.S. Dept. of the Interior, Bureau of Mines, 1937) (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: List of respiratory protective devices approved by the U.S. Bureau of Mines (U.S. Dept. of the Interior, Bureau of Mines, 1941), also by United States Bureau of Mines (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Methods for the detection and determination of carbon monoxide (U.S. Govt. Print. Off., Bureau of Mines, 1938), also by L. B. Berger (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Microcolorimetric determination of benzene in blood and urine (United States Bureau of Mines, 1936), also by S. J. Pearce, W. P. Yant, and United States Bureau of Mines (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: A microcolorimetric method for the determination of toluene (U.S. Dept. of the Interior, Bureau of Mines, 1936), also by W. P. Yant and S. J. Pearce (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Petrographic identification at atmospheric dust particles (U.S. Dept. of the Interior, Bureau of Mines, 1938), also by Wilder D. Foster (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Quantitative analysis by x-ray diffraction. [Part] I, Determination of quartz (U.S. Dept. of the Interior, Bureau of Mines, 1940), also by James W. Ballard and H. I. Oshry (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Relation between and precision of dust counts (light- and dark-field) from simultaneous impinger, midget-impinger, electric-precipitator, and filter-paper samples (U.S. Dept. of the Interior, Bureau of Mines, 1949), also by Carlton E. Brown (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Relation of dust concentration to depth of hole during wet drilling (U.S. Dept. of the Interior, Bureau of Mines, 1938), also by J. B. Littlefield (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Relation of dust dissemination to water flow through rock drills (U.S. Dept. of the Interior, Bureau of Mines, 1938), also by Carlton E. Brown (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Routine quantitative analysis by x-ray diffraction (U.S. Dept. of the Interior, Bureau of Mines, 1946), also by James W. Ballard (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Selection, use, and maintenance of respiratory protective devices (U.S. Dept. of the Interior, Bureau of Mines, 1943), also by S. J. Pearce (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: The solvent action of selenious acid (1926) (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Some photometric instruments used in x-ray diffraction and spectrographic methods of analysis (U.S. Dept. of the Interior, Bureau of Mines, 1942), also by James W. Ballard and Howard I. Oshry (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: A technique for use of the impinger method (U.S. Dept. of the Interior, Bureau of Mines, 1938), also by Carlton E. Brown and United States Bureau of Mines (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Testing and design of respiratory protective devices (U.S. Dept. of the Interior, Bureau of Mines, 1939), also by United States Bureau of Mines (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Testing respiratory protective equipment for approval (U.S. Dept. of the Interior, Bureau of Mines, 1940), also by United States Bureau of Mines (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Toxicity of dichlorotetrafluoroethane (U.S. Dept. of Commerce, Bureau of Mines, 1932), also by W. P. Yant and F. A. Patty (page images at HathiTrust)
• Schrenk, H. H. (Helmuth Herman), 1902-: Use of respiratory protective devices under abnormal air pressure (U.S. Dept. of the Interior, Bureau of Mines, 1940), also by F. E. Griffith (page images at HathiTrust)

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