88 
EXPERIMENT NO. 50. 
Formalin 2,000 c. c., permanganate 1,000 grams, equally distributed in four ghlvanized-iron buck- 
ets, two of which were placed in the main sleeping compartment of car and one in the alleyway 
at each end. 
Weather: Clear, rather strong southerly wind. 
Temperature in car at beginning of experiment, 78° F. 
Relative humidity in car at beginning of experiment, 53 per cent. 
Time of exposure, 2 hours (12.33 p. m. to 2.33 p. m.). 
Temperature in car after opening and airing 15 minutes, 79° F. 
Relative humidity in car after opening and airing 15 minutes, 50 per cent. 
[+ means growth; — no growth.] 
Organism. 
Place of exposure in car. 
Result. 
B. coli communis 
Toilet room 
Smoking room 
Drawing-room 
-f- 
+ 
+ 
Berth, upper No. 9 
Berths lower No. 6 
+ 
B. pyocyaneus 
Toilet room 
Drawing-room 
+ 
Smoking room 
+ 
Floor, main sleeping compartment 
+ 
Berth, upper No. 1 
Berth, upper No. 4 - 
Berth, upper No. 9 
+ 
Berth, lower No. 7 
+ 
Berth, lower No. 12 
+ 
B. typhosus 
Toilet room 
do 
Smoking room 
Drawing-room ... *. : 
+ 
Floor main sleeping compartment 
+ 
Berth, upper No. 5 
Berth, upper No. 6 
+ 
Berth, lower No. 1 ' 
Staph, pyog. n.v.r 
Berth, lower No 11 
Toilet room 
- 
Smoking room 
+ 
Drawing-room 
+ 
Berth, upper No. 9 
+ 
Rfvrt.h, lowpr No. fi 
+ 
B. tuberculosis 
Berth, upper No. 1 
+ 
Sputum exposed and injected into guinea pig; pig chloro- 
formed 75th day; lost 25 grams in weight; marked lesions of 
tuberculosis. 
Rprt.h lowpr No 12 
+ 
Sputum exposed and injected into guinea pig; pig chloro- 
formed 75th day; lost 30 grams in weight; marked lesions of 
tuberculosis. 
No control pig inoculated. 
