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Excerpt from Bacteria in Relation to Plant Diseases, Vol. 1 The subject of bacterial diseases of plants is older than the poured-plate method of Koch, but until recently our knowledge of it has been in a very chaotic state, it having been for the most part for twenty-five years a recognized but uncultivated field. In recent years, however, publications on plant bacteria have multiplied, and they now amount to several hundred titles. The writer's studies of the bacteria themselves and of the diseases which they cause, as distinct from the literature of the subject, began in 1893. At that time there was very little reliable information on this subject. The literature is now more extensive, but it is nowhere gathered together in one place and properly summarized. It has seemed, therefore, for a long time, that a work of the scope of the treatise here presented might be clarifying and useful to many people. There have been published, and are still appearing, so many papers on the subject of bacterial diseases of plants by writers ignorant of bacteriological methods and indifferent to the requirements of modern pathological inquiry that this whole subject has been brought into disrepute. This is the only possible explanation of the fact that up to a very recent date writers on pathology and bacteriology have been telling their readers that there is no good evidence of the existence of any such diseases. The following editorial paragraph from the Botanical Gazette February, 1893, may be cited as indicating the general feeling on this subject at that date: What is especially needed at this stage of advancement is the continuous and systematic examination of the whole ground by one or more well-equipped investigators, and the publication of a critical statement of what may be safely accepted as proven. Even a summarization of the present status of the subject, without critical laboratory study, would be helpful, if well done. That this feeling has become intensified with the progress of time and the multiplication of literature is shown by the following citation from the large Treatise on Bacteriology, by Miquel and Cambier, published in 1902: The list of bacteria capable of attacking the higher plants increases rapidly from day to day; but whether the experiments of plant pathology offer greater difficulties than those of animal pathology, or whether the authors who have undertaken them have ignored the multiple resources which bacteriology offers to-day, many of the species described must be studied anew, their monography offering regrettable lacunae. By the side of some fruitful and well-conducted labors we find, unfortunately, altogether too many which must be done over entirely. It was with the hope of making useful discoveries and clearing up part of this contradiction and uncertainty that the writer began his study of this class of diseases. His first effort in the way of preparation was to supplement his botanical training with a knowledge of bacteriological methods which he obtained from standard literature and competent teachers. 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."

Excerpt from Bacteria in Relation to Plant Diseases, Vol. 1: Methods of Work and General Literature of Bacteriology Exclusive of Plant Diseases What is especially needed at this stage of advancement is the continuous and systematic examination of the whole ground by one or more well-equipped investiga tors, and the publication of a critical statement of what may be safely accepted as proven. Even a summarization of the present status of the subject, without critical laboratory study, would be helpful, if well done. 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.