Excerpt from Micro-Organisms and Soil Structure Affect Yellow-Poplar GrowthA method described previously1 was devised to move soil samples to the laboratory with soil structure intact. Brie¿y, the Open end of a number 10 tin can is firmly pressed against the sampling surface while the litter is cut with a knife or trowel. The can is driven into the ground nearly ¿ush with the soil surface by means Of a wooden block and a sledge hammer. Air escapes through holes punched in the end of the can. The can and its contents are carefully removed with a shovel and the excess soil shaved from the bottom.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.