me2
Posts: 52
Joined: 9/24/2011 Status: offline
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In 2010 an inventor in the US applied for a patent on a poison for killing insects, with no "prior art" regarding the two components: an attractant (sugar) and a repellant (poison). However, chocolate-covered insecticide powder was already on the market some two hundred years ago. The Vicat family of France, chemists by trade, included a seller of chocolate. At some point in the 1800s the chocolatier conceived of coating insecticide with chocolate. Vicat's insecticide came in at least two sizes of bottle - one for the coat pocket, and one for leaving at home and used to fill the pocket-size bottle. Originally it appears to have been 'flea powder' but also was used for bed-bugs. The images below show the pocket-flea powder (for example used in horse-drawn cabs in London which were rife with fleas) and a sample of the slightly larger 'leave-at-home' size. The product bears a flea embossed on the bottle.
< Message edited by me2 -- 10/7/2011 11:48:10 AM >
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Michael B. Been digging for 38 years
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