The Online Books Page

Online Books by

Harvey Leroy Sweetman

(Sweetman, Harvey Leroy, 1896-)

Books from the extended shelves:

• Sweetman, Harvey Leroy, 1896-: The biological control of insects : with a chapter on weed control (Comstock Pub. Co., 1936, 1936) (page images at HathiTrust)
• Sweetman, Harvey Leroy, 1896-: Ecological studies of the Mexican bean beetle (Massachusetts Agricultural Experiment Station, 1930), also by H. T. Fernald (page images at HathiTrust; US access only)
• Sweetman, Harvey Leroy, 1896-: The principles of biological control; interrelation of hosts and pests and utilization in regulation of animal and plant populations. (W. C. Brown Co., 1958) (page images at HathiTrust)

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