112 



MARSHALL. 



1 



1 



0.0005 cc. fatal in less than 24 

 hours; minimum fatal dose 

 not reached. 



a 



it 



3 



o 













1 cc. of 1 to 100,000 dilution 



plated in agar; colonies too 



numerous to count. 

 1 cc. of 1 to 1,000,000 dilution 



plated in agar; colonies too 



numerous to count. 





3 

 C 



c 













4 cc. of thick tenacious exudate. 



0.00002 has 1.5 cc. thick tena- 

 cious exudate. 





Volume (in fractions of a cubic centimeter) of exudate 

 from dead guinea pigs which proves fatal in less than 24 

 hours after intraperitoneal inoculation into a new set of 

 guinea pigs. 



•lOOOO'O 













o o o 



•30000 













o + o 



•eoooo'o 













o + o 



lOOO'O 













+ + £ 



•raooo 













+ £ £ 



.•sooo'o 









<= + + £ £ 



■ioo - o 









o + + o 



'ZOO'O 









o + 







■eooo 









o + j 







'lO'O 









o + ! 







•zoo 









+ + ' i 







•C0 









+ 









'10 



+ + + + 









o'O 



: : : + 









o * 



o3 g 



Sept. 4 

 Sept. 5 

 Sept. 6 

 Sept. 7 

 Sept. 8 



Sept. 9 



Sept. 10 



Sept. 11 



