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Excerpt from Supplement I to Laboratory Evaluation of Promising Compounds as Repellents to Flour Beetles, Tribolium Spp Richard H. Guy, working under the general direction of Dean F. Davis, leader of the ams research station at Savannah, conducted the laboratory work and assembled and tabulated the performance data on the chemicals ih cluded in this supplemental report. He was assisted in the laboratory work by Charles E. Metts. 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.
Excerpt from Laboratory Evaluation of Promising Compounds as Repellents to Flour Beetles, Tribolium Spp This report presents the results of these laboratory evaluation tests from the time of their initiation until the present. During this period a total of 534 compounds has been tested. 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.
Excerpt from Laboratory Evaluations of Compounds as Repellents to Cockroaches, 1953-1974 The tests were always started on Monday, and the cockroaches were counted daily except Sunday for 1 week. With as little disturbance to the insects as possible, a count was made by observing through the bottom of the crystalliz ing dish. Only the insects on the inner surface of the shelters were counted. Cockroaches that had entered neither container or were merely hiding beneath the shelter were not included in the day's count. After each count the insects were shaken out of their shelters and the two shelters reversed to force the insects to make another choice. Each test was replicated 2 or 3 times resulting in a minimum of 12 counts for each test material. 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.