Important sections as for instance those on injurious feed ad- 

 mixtures and pasturag-e, which to this day are considered as coming 

 properly under the subject of veterinary hygiene, constitute an inti- 

 mate connecting link between hygiene and feeding. Furthermore, I 

 do not consider it wise that a comparatively restricted field of study 

 which is practically complete in itself (Veterinary Hyg-iene) should be 

 artificially subdivided into two dependent halves (hygiene and feed- 

 ing). Not even the temporary interests of the student would justify 

 such unwarranted proceedings. On the contrary, pedagogic interests 

 would be served by dealing with related subjects under as few heads 

 as possible instead of an indefinite splitting up of subjects into every 

 possible kind of specialty. 



Notwithstanding my objections to this division of veterinary hy- 

 giene into separate sciences I have submitted to the trend of the times 

 and published my "Veterinary Hygiene" in two parts, "The Science 

 of Feeding" and "Hygiene of Domesticated Animals." As long as the 

 entire work was published in one volume, objections were not so 

 serious because the whole subject was always at hand for reference. 

 But this no longer holds since the increased bulk of the work made its 

 publication in two volumes almost necessary. 



In the revision of the work numerous additions were called for in 

 every part, thus the enlargement of the chapter on the conservation 

 and preparation of feeding stuffs, the preparation of a key for the 

 determination of the most important meadow grasses and descriptions 

 of the same, the sections of feed for goats, dogs, poultry, ducks, geese, 

 rabbits and fish. Discussions of several new feeding stuffs and substi- 

 tute feeding stuffs have also been added and the chapters on examina- 

 tion of feeding stuffs and contaminations have been enlarged. Indi- 

 vidual and group feeding have also received additional discussion. To 

 conform with modern efforts to feed for economic production. The 

 addition of 58 new cuts is believed to be a decided help in the study of 

 this work. 



In the revision of this work the extraordinary practical importance 

 of the subject of "feeding" to the veterinary and agricultural interests 

 has been kept constantly in mind. 



My sincerest thanks are extended to Dr. Haupt and to Dr. Scha- 

 dowsky for the laborious work of correcting the proof, and to the pub- 

 lishing house of Paul Parey for its ready compliance with all my 

 requests. 



May the revised third edition in its new form meet with the same 

 kindly reception by its readers and critics as was the fate of its 

 predecessors. 



M. Klimmer. 

 Dresden, Fall of 1920. 



