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Scientific beekeeping,

By Sechrist, Edward Lloyd,.
Roscoe, Calif., Earthmaster publications, 1946 .
64 p. 23 cm..

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Earthworms, their intensive propagation and use in biological soil-building; the Earthmaster system.

By Barrett, Thomas Jason,.
Roscoe, Calif., Earthmaster Publications, 1948 .
59 p. , "An introduction to the more complete textbook, H̓arnessing the earthworm."̓-p. 54. | Pub. 1942 under title: The Earthmaster system for intensive propagation and use of domesticated earthworms. 23 cm..

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Honey getting.

By Sechrist, Edward Lloyd,.
Roscoe, Calif., Earthmaster Publications, 1947 .
82 p. 23 cm..

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