78 MODERN DAIRY PRACTICE. 



not be made later during the summer, since it will take a 

 long time before the strong carbolic-acid smell is gone, 

 and as the milk very quickly will take up all kinds of 

 odors and be tainted by it. A suitable carbolic-acid solu- 

 tion may be obtained by dissolving soda in water and milk 

 of lime, adding some crude carbolic acid to the solution. 

 This mixture has proved effective in disinfections after all 

 kinds of epidemic diseases. 



In my opinion the safest method is to disinfect the 

 stable, even when infectious diseases have not appeared 

 there. This method will doubtless tend to increase the 

 keeping quality of the milk and its products. In this con- 

 nection I will mention that the milk epidemic at the 

 Duelund estate in Denmark (see page 20) did not dis- 

 appear until after a thorough disinfection of both stable 

 and dairy. 



In the January number of the Annales de VInstitut 

 Pasteur, 1891, appearing after the above chapter was 

 written, Prof. Duclaux gives a full account of some experi- 

 ments which confirm the main principles for the treatment 

 of milk laid down in the preceding pages. 



" It seems to me," Duclaux says,* " that instead of 

 going farther in this direction [sterilization of the milk by 

 heat], it would be well to turn around and ask if it were 

 not better to avoid that the heating become necessary, i.e., 

 prevent all injurious bacteria from entering into the milk. 

 In an address which I made during the World's Fair, on 

 June 7, in Trocadero Hall, I said that milk from a well- 

 kept cow stable, milked very rapidly into a carefully- 

 cleaned pail, by a milker who washed well his hands and 

 the teats of the cow, does not sour more rapidly than 



* Loc. tit., vol. 5, p. 59, 



