vill PREFACE 
In order not to complicate or unnecessarily expand this text, a 
knowledge of general pathology and the principles of bacteriology has 
been taken for granted. 
The difficulties involved in the preparation of such a text are both 
numerous and obvious. The indication of errors or omissions with 
any other criticisms that would tend to better the volume and 
increase its efficiency for the student will be thankfully received. 
V. A.M. 
