ISBN: 9780265829295

Hardback, [PU: Forgotten Books], Excerpt from Anatomical and Histological Studies of the Digestive Canal of Cimbex Americana For general dissection the specimens were prepared by ingectin… More...

Hardback, [PU: Forgotten Books], Excerpt from Anatomical and Histological Studies of the Digestive Canal of Cimbex Americana For general dissection the specimens were prepared by ingecting 95% alcohol into them with a hypodermic syringe. For histological purposes the dorsal integument was removed and they were then thrown into the preserving fluid. Several methods of fixation were used, viz Fleming's weak and strong solutions, Perenyfs fluid and a saturated aqueous solue tion of corrosive sublimate. In the last named method the insects were either killed in hot water to which, after a few seconds, an equal amount of a saturated aqueous solution of sublimate was added, or the insects, after being killed in hot water, were thrown directly into a hot saturated solution of sublimate. Here the insects were allowed to remain from twenty to forty minutes. They were then thoroughly washed in running water, and finally preserved by placing them in 50. 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., Biology, Life Sciences<