TRANSLATOR'S PREFACE. 



Agricultural education is making such rapid strides 

 in this country, that no apology is needed for 

 translating a book which appears to fill a gap, 

 especially as it is written by a well-known authority. 

 Dr. Ritzema Bos has kindly allowed certain small 

 alterations to be made which adapt the work to the 

 requirements of British agriculture. Additions are 

 indicated by square brackets, and small print employed 

 in the case of some non-British animals. A few 

 forms have been omitted for similar reasons. Constant 

 reference has been made to the published works of 

 Miss E. A. Ormerod, who has added to my obligation 

 by writing an Introduction, and I also wish to acknow- 

 ledge my indebtedness to Mr. J, H. Salter, B.Sc, and 

 Mr. J. Dawson Roberts, M.R.C.V.S., for kind help 

 given by them. 



J. R. AINSWORTH DAVIS. 



Abebtstwyth, 



May, 1894 



