tailieunhanh - Disease and Its Causes

There is great difficulty, in the case of a subject so large and complex as is disease, in giving a definition which will be accurate and comprehensive. Disease may be defined as "A change produced in living things in consequence of which they are no longer in harmony with their environment." It is evident that this conception of disease is inseparable from the idea of life, since only a living thing can become diseased. In any dead body there has been a preëxisting disease or injury, and, in consequence of the change produced, that particular form of activity which constitutes life has ceased. Changes such. | Disease and Its Causes 1 Disease and Its Causes The Project Gutenberg eBook Disease and Its Causes by William Thomas Councilman This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at Title Disease and Its Causes Author William Thomas Councilman Release Date March 8 2005 eBook 15283 Language English Character set encoding ISO-8859-1 START OF THE PROJECT GUTENBERG EBOOK DISEASE AND ITS CAUSES E-text prepared by Robert Shimmin Carol David Joshua Hutchinson and the Project Gutenberg Online Distributed Proofreading Team Note Project Gutenberg also has an HTML version of this file which includes the original illustrations. See or http dirs 1 5 2 8 15283 15283-h or http dirs 1 5 2 8 15283 DISEASE AND ITS CAUSES by W. T. COUNCILMAN . . . Professor of Pathology Harvard University New York Henry Holt and Company London Williams and Norgate The University Press Cambridge . 1913 PREFACE In this little volume the author has endeavored to portray disease as life under conditions which differ from the usual. Life embraces much that is unknown and in so far as disease is a condition of living things it too presents many problems which are insoluble with our present knowledge. Fifty years ago the extent of the unknown and at that time insoluble questions of disease was much greater than at present and the problems now are in many ways different from those in the past. No attempt has been made to simplify the subject by the presentation of theories as facts. The limitation as to space has prevented as full a consideration of the subject as would be desirable for clearness but a fair division into the general and concrete phases of disease has been attempted. Necessarily most attention has been .