412 Bulletin 165. 



Sufficient c. p. sulphuric acid was added to a four weeks old 

 bouillon culture to make a five per cent solution. Inoculations in 

 bouillon from this mixture after a lapse of one minute and after 

 longer intervals, indicated by their failure to show growth, that 

 five per cent sulphuric acid is rapidh' fatal to Bacillus lactis 

 viscosus. 



ACKNOWLEDGMENT. 



The thanks of the Dairy Division are extended to Dr. James 

 Law, Director of the New York State Veterinary College and to 

 Dr. V. A. Moore, Professor of Pathology and Bacteriology for the 

 privileges of the Laboratories of Bacteriolog}^ in that college. 

 I am personally indebted to Professor Moore and to Instructor 

 R. C. Reed for manj' helpful suggestions which they have given 

 during the prosecution of this work. The assistance rendered 

 by Mr. Michael Quigley, Inspector of the State Department of 

 Agriculture, and the hearty cooperation of the owners of the 

 creameries in which the trouble occurred, were highl}' appre- 

 ciated. 



