6 



servirung," the works of Prof. Duclaux, Freudenreich and 

 Leze , "Milch Zeitung," the Wisconsin and Royal Danish 

 Experiment Station reports and the latest complete work on 

 dairying by Dr. F. Stohmann. 



Since publishing the first edition, the changes made in the 

 pasteurizing heaters have been so many that several of those 

 illustrated have become obsolete; but, while I have left out 

 several, it seemed to me that the development is best shown 

 by retaining many of them even at the risk of overloading 

 the pamphlet with illustrations. 



Although the chapter on City Milk has been increased, 

 this subject cannot be done justice in so small a space, and 

 I therefore confine myself to giving a few hints. If any one 

 feel need of more information as to apparatus, it will pay 

 them to send for the catalogues of the various dealers in 

 Dairy and Milk supplies ; many of them contain much informa- 

 tion of value. 



J. H. MONRAD. 



Winnetka, Illinois, July, 1901. 



