Excerpt from Clinical Diagnosis: A Manual of Laboratory Methods In the present edition, as in the preceding one, the scope of this book has been somewhat extended and its size increased. It is hoped that its value has thereby been enhanced without sacrifice of the simplicity and conciseness which were its original aim. As before, chief emphasis has been laid upon methods and microscopic morphology. Much of the new material is the outgrowth of questions which have arisen in class-room and laboratory. To one who sees a great deal of the work of students in the clinical laboratory, it soon becomes evident that errors in microscopic diagnosis spring much less frequently from ignorance of the typical appearance of microscopic structures than from imperfect preparation of the material, faulty manipulation of the microscope, or failure to recognize extraneous structures, artifacts, and other misleading appearances. Such sources of error have been given especial attention. In order to keep the size of the volume within bounds, room has been made for the new matter by omissions and condensations so far as these have seemed wise, but great care has been exercised to avoid omission of essential details. It has, in fact, been found necessary to elaborate many subjects which seemed to have been too briefly stated in past editions for clear understanding. 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.