Books by H. R. Tolley:
Books in the extended shelves:
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Tolley, H. R. (Howard Ross), 1889-: Corn-belt farmers' experience with motor trucks : a study of 831 reports from farmers who own motor trucks (U.S. Dept. of Agriculture, 1921), also by L. M. Church (page images at HathiTrust)- Tolley, H. R. (Howard Ross), 1889-: The cost and utilization of power on farms where tractors are owned : 286 farms, Ohio, Indiana, Illinois, 1920 (U.S. Dept. of Agriculture, 1921), also by L. A. Reynoldson (page images at HathiTrust)
- Tolley, H. R. (Howard Ross), 1889-: The efficient operation of thrashing machines (U.S. Dept. of Agriculture, 1918) (page images at HathiTrust)
- Tolley, H. R. (Howard Ross), 1889-: Experience of eastern farmers with motor trucks : an analysis of 753 reports from farmer truck-owners (U.S. Dept. of Agriculture, 1920), also by L. M. Church (page images at HathiTrust)
- Tolley, H. R. (Howard Ross), 1889-: Fire prevention and fire fighting on the farm (U.S. Dept. of Agriculture, 1918), also by Arnold Phipps Yerkes (page images at HathiTrust)
- Tolley, H. R. (Howard Ross), 1889-: Input as related to output in farm organization and cost-of-production studies (U.S. Dept. of Agriculture, 1924), also by John D. Black and Mordecai Ezekiel (page images at HathiTrust)
- Tolley, H. R. (Howard Ross), 1889-: Machinery for cutting firewood (U.S. Dept. of Agriculture, 1919) (page images at HathiTrust)
- Tolley, H. R. (Howard Ross), 1889-: Motor trucks on corn-belt farms (U.S. Dept. of Agriculture, 1923), also by L. M. Church (page images at HathiTrust)
- Tolley, H. R. (Howard Ross), 1889-: Motor trucks on eastern farms (U.S. Dept. of Agriculture, 1921), also by L. M. Church (page images at HathiTrust)
- Tolley, H. R. (Howard Ross), 1889-: The standard day's work in central Illinois : performance of implements and crews as indicated by reports from 600 farmers in a typical corn-belt area (U.S. Dept. of Agriculture, 1920), also by L. M. Church (page images at HathiTrust)
- Tolley, H. R. (Howard Ross), 1889-: The theory of correlation as applied to farm-survey data on fattening baby beef (U.S. Dept. of Agriculture, 1917) (page images at HathiTrust)
- Tolley, H. R. (Howard Ross), 1889-: Tractors on Southern farms (U.S. Dept. of Agriculture, 1922), also by L. M. Church (page images at HathiTrust)
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