by R. C. Roark
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A digest of the literature of derris (de...
The early history (1848-1918) of the use...
A bibliography of chloropicrin, 1848-193...
A list of publications, on 2, 2-bis (par...
Tests of various aliphatic compounds as ...
A second digest of information on alleth...
Pyrethrum flowers
The use of sulphur in the control of tru...
Pyrethroids
Alpha-cypermethrin.
Tests of DDT and pyrethrum in oil soluti...