Henry Howe Richardson
Published: 2018-09-13
Total Pages: 20
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Excerpt from Studies on Nicotine Fumigation in Greenhouses The pressure can (fig. Was a commercial product, the contents of which analyzed percent of nicotine. A 1-pound can was placed in the center of the greenhouse, and smoke clouds were sent off toward both ends. It required about 4 minutes for complete discharge of the contents. Analysis of the residue remaining in the can after' the discharge showed only a trace of nicotine. The exhaust apparatus was set in the center of the greenhouse. The concentrated nicotine solution was introduced into the exhaust pipe at the rate of 3 ml. Per minute from a dropping funnel, distribution be ing given simply by the exhaust gases. The temperature of the exhaust pipe was 300° C. Soon after the beginning of operation and rose to 300° C. Within 5 or 6 minutes. 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.
