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HART 1. Record of patient 116 strain of typhus in guinea-pigs, May 1920 to June 1921. 

 tigs 1, 3 and 5 each received 10 c.c. of blood intraperitoneally on May 13, 1920. They ran normal 

 ures until the 17th, 23d and 14th days respectively. Guinea-pigs 1 and 5 were killed on the fifth day 

 The lesions of typhus were found in their brains. Guinea-pig 3 was killed on the seventh day of 

 b histological examination was made 



sr figure of each entry is the number of the guinea-pig, the figure below the line is the incubation 

 period in days. S.C. indicates subcutaneous inoculation 



