Excerpt from Classification of Dairy Bacteria It will manifestly require many years before a complete knowledge of dairy bacteria can be Obtained. While we have in the following pages described about one hundred and sixty types, we recognize that this is by no means the Complete list of even common forms; but to complete the list will require many years of laborious study. When we recognize the extreme variability of bacteria types, especially in physiological charac ters'upon which their classification may be partly based, it be comes evident that to reach an end of the description of dairy forms is almost an impossibility. Our recognized types, as will be shown, vary in all directions and run into each other by more or less complete intermediate links. Every new set of cultures which we obtain from even similar sources show variations in various properties connecting them more or less with other types. This has been forced upon us more and more, as the data we have collected has increased, until we have almost con cluded that the task of arranging these forms into species or even groups is hopeless; for even at the very best these groups will show such wide internal variations as to connect them more or less completely with the closely associated forms. Before such groupings can be finally made an immense amount of work and many years' study must be given. But every attempt to formulate our ideas clears our conceptions, and hence it is thought that the present endeavor to arrange 'the dairy bacteria in a scheme of classification, even though of necessity incomplete and doubtless requiring later changes, will bring us nearer to a proper conception of their relation and help toward a real understanding of problems of bacteriology. 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.