British Antarctic Expedition 1907 9 Under The Command Of Sir Eh Shackleton Cvo Reports On The Scientific Investigations Volume I Biology PDF Download

Excerpt from British Antarctic Expedition 1907-9, Under the Command of Sir E. H. Shackleton, C. V. O, Vol. 1: Reports on the Scientific Investigations; Biology In summer the collecting was still simpler. The weed could be washed in the lake water without the need for preliminary thawing. In this way we collected continually from the shallow lakes. There were some deeper lakes, which, as it proved, did not melt in summer. In Clear Lake a hole was dug through the ice. We came on water at a depth of about four feet. Here we dredged on the lake bottom, at a depth of seventeen feet. There was a quantity of vegetation brought up, but it was discoloured and dead, and there was no living thing upon it. Late in the winter, Priestley sunk a shaft in the southern portion of Blue Lake, for the purpose chiefly of observing the temperatures of the ice. At a depth of nine feet some scraps of weed were got, and when thawed a number of living animals were found on it. At a depth of fifteen feet we came on the bottom of the lake, which was here composed of angular fragments. These were covered by a continuous film of yellow weed, and on this also there were numerous living things. 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.