Preface to German Edition. v 



concisely, to present the positive facts in as clear and as brief 

 a manner as possible, and to limit to what is absolutely essential 

 the incomplete, uncertain and controversial points of study, the 

 elaborate discussion of which is usually confusing and tends to 

 weary the student. Of course, important objections and ques- 

 tioned points in theories have been noticed, lest the student be 

 led to luere memorization and superficial study, and in order that he 

 may be stimulated to think. I believe that the work will be found 

 useful to the practising- veterinarian as well, as a general presenta- 

 tion of the most recent position of the science. 



I have omitted description of the individual types of animal 

 parasites and bacteria and taken up only in this connection their 

 bearings upon general pathology. The scope of the v/ork would 

 otherwise have been too large; and full details upon these sub- 

 jects may be found in the part devoted to special pathology 

 {Lehrhuch der pathol. Anatomic der Haitsticrc. II. Aufl. 1901. 

 F. Enke, Stuttgart) and in my Lehrhuch der Bakterienkunde und 

 pathol Mikroskopie (IV. Aufl. M. Perles, Wien, 1903). The 

 subject of malformations is also treated of at the beginning of the 

 special section just mentioned, and a repetition is therefore super- 

 fluous. 



The publisher has presented the volume in an excellence of 

 style which places me under special obligation to him. 



Numerous new illustrations are included, prepared by the ar- 

 tistic hand of K. Dirr; some of the cuts I have borrowed from 

 the works of authors cited in the text. For a mmiber of photo- 

 graphs I must thank for their kindness the veterinary physicians 

 Dr. Jakob and Dr. W. Ernst, the latter of whom, a skillful micro- 

 scopist and bacteriologist, has been engaged for a number of 

 years in my institution and has aided me in a most valuable man- 

 ner in carrying on investigations bearing upon my studies. 



Munich. TH. KITT. 



