Colby, G: Arsenical Insecticides -

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Résumé :
Excerpt from Arsenical Insecticides: Paris Green; Commercial Substitutes; Home-Made Arsenicals The following statement gives the character of the work done on paris green at this Station during the years 1899, 1900, 1901, and 1902: Before the session of the Legislature of 1901, this Station examined thirty-seven samples of paris green, and it was found, and so reported, that only 22 per cent were acceptable for Use in California orchards, according to its standard (p, 17, Cala. Stat. Bull. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.