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Insecticide.

Description: Patent for an insecticide that uses an arsenic compound to kill insects instead of Paris green or London purple, and can easily be made into a beautiful green powder that may be used as a pigment.
Date: November 27, 1894
Creator: Brumleu, Ludwig & Brumleu, Ernest
Partner: UNT Libraries Government Documents Department

Insecticide.

Description: Patent for certain new and useful improvements in insecticides, including instructions and illustrations.
Date: June 14, 1898
Creator: Carmichaelm, Joseph B.
Partner: UNT Libraries Government Documents Department
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