173 
Conn, H. J., Harding, R. A., Kligler, I. J., Frost, W. D., Prucha, M. J. and 
Atkins, K. N. 
“Methods of Pure Culture Study.” 
Jour. Bact. 1919, Vol. 4, 107-131. 
A COMPARISON OF THE TWO METHODS OF ADJUSTING THE REACTION 
OF BACTERIOLOGICAL MEDIA 
Sample Media Witte Peptone Difco Peptone 
No. ce of N/1 Base to make | cc of N/1 Base to make 
+1 12a 77 SP il Ph 7 
1 Bouillon 1.0 0.8 3.0 0.3 
Mee. 5 oi cen iiay aaveper a 1.0 1.0 1.0 0.0 
Se | es ihaiie lt, atte. i 20) 1.0 1.0 0.0 
A WI APS of ¥ re since. 2.0 2.0 2.0 0.0 
ETHIE 7 © S51 RAM ea een 1:25 1.2 i ee(ts) 0.08 
1 PRAT ores 7.0 3, 6.0 0.0 
BW AO} ERE Re oa es Alea nee 5.0 12 6.0 0.0 
See all ac Hee 4.0 1.2 6.0 0.0 
Ts sk eae ok ares KO) 1.3 5.0 0.0 
EAGVICLME IF MLai/ecRSE, Oe kiee cieeeue. « aa) eZ 5 FAB) 0.0 
i Gelatin 13.0 5.0 15.0 5.2 
Ce lee sl ie ote ae 15.00 5.4 13.0 5.3 
StS SO Re es ee re 14.0 (3) 03) 13.0 5.0 
Zit = 9 eee en 14.0 eee 14.0 5.1 
PASUO Wim y PsP wats foto cash ant 14.0 5.22 13.75 5.15 
