John Bernhard Smith, New Jersey State Entomologist 1895-1911
Showing posts with label
Insecticides
.
Show all posts
Showing posts with label
Insecticides
.
Show all posts
Friday, February 8, 2013
1908 Insecticide Materials and their Applications
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1903 Insecticides and their use.
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1899 Crude Petroleum as an Insecticide
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Tuesday, February 5, 2013
1903 Insecticides
Saturday, February 2, 2013
1903 Insecticides
1907 Insecticides
Friday, February 1, 2013
1906 Materials to be tested.
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