29-1: 



Bulletin 178. 



TABLE ]So. YIL 

 Summary of Results of the Examination of Udder No. S. 



* Notes incomplete. 



The examination of the agar plate cultures confirmed the conclu- 

 sions drawn from the examination of the gelatin plates. Owing to 

 the fact that (1) the colony growth of species is never so distinctive 

 on agar as upon gelatin, and (2) that micrococcus No. 2 assumes a 

 diversity of shades on agar, the results obtained from the exam- 

 ination of the agar plates do not lend themselvos to a concise 

 tabulation. 



Group III. — An examination of udders 9 and 10 confirmed the 

 i-esults of previous examinations. Every culture from the regions 

 A, B and C of each quarter of the two udders showed growth. 

 Neither subcultures, nor further study of the plates were made. 



Grouj) IV. — In the examination of these udders gelatin only was 

 used, experience having demonstrated its superiority. As in the 

 former examinations, the results indicated an extensive invasion of 

 the udder. In practically every quarter, it was possible by com- 

 parison of the gelatin plates, to observe the similarity of the bac- 

 terial flora in each of the regions A, B and C. Two species of 

 micrococci were found in considerable numbers in all of the udders. 



