PREFACE TO THE FIRST EDITION. 



In this manual the writer has endeavored to describe the 

 laboratory technique which the beginner must follow, and at the 

 same time to give a concise summary of the facts in bacteriology 

 most important to the physician. In preparing a work of this 

 character, which claims to be nothing more than a compilation, 

 the standard text-books were necessarily consulted freely. On 

 account of the need for brevity it has, in most cases, been im- 

 possible to mention authorities. 



The writer is glad to have this opportunity to acknowledge 

 his obligation to the works of Sternberg, Fliigge, Giinther, 

 Eisenberg, Abbott, W. H. Park, Muir and Ritchie, Vaughan 

 and Novy, and McFarland; and to numerous papers by Pro- 

 fessor Welch and others. It is thought that the chapters on 

 Germicides and Surgical Disinfection, by Drs. Thomas B. Car- 

 penter and Marshall Clinton, will be useful not only for the 

 information presented in them, but especially in correlating 

 that information with the facts of bacteriology. 



Buffalo, New York, October, 1898. 



XI 



