Excerpt from The Maritime Medical News, Vol. 16: A Monthly Journal of Medicine and Surgery; July, 1904 In this book a systematic attempt was made to make use of a class of facts which up to that time had been regarded as belonging to political arithmetic, under which description some of the most important problems of which modern writers term vital statistics had been studied, especially in England. Political arithmetic had come into existence in England in the mid dle of the 17th century. The earliest work is that of Captain John Graunt, of London, entitled, Natural and Political Annotations made upon the Bills of Mortality, published in 1666. 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.