Memoirs of the National Academy of Sciences, Vol. 8 (Classic Reprint)

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Excerpt from Memoirs of the National Academy of Sciences, Vol. 8This work was undertaken at the instance of Dr. John S. Billings, Director of the Laboratory of Hygiene, University of Pennsylvania, with the view of obtaining, if possible, some explanation, from a bacteriological standpoint, of the greater mortality among persons living in houses built on made ground over those living on virgin soil. In some cities, as Washington and New York, filled localities can be mapped out and the course of old runs followed by the higher death rate in these districts. N 0 positive opinion can be based on the data so far obtained, and these notes are presented mainly as a small contribution to our knowledge of the bacteria of the soil.In the prosecution of the work I have had the advice of Dr. Billings and of Dr. A. C. Abbott, first assistant, to both of whom I am much indebted.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.