107 
EXPERIMENT NO. 69. 
Two generating lamps; commercial wood alcohol 3,000 c. c. (1,500 c. e. in each lamp). 
Lamps placed one in each end of main sleeping compartment of car. 
Weather: Clear and dry, very little wind. 
Temperature in car at beginning of experiment, 60° F. 
Relative humidity in car at beginning of experiment, 58 per cent. 
Time of exposure, 2 hours (11.30 a. m. to 1.30 p.m.) from time of starting lamps and closing car. 
Temperature in car after opening and airing 15 minutes, 62° F. 
Relative humidity in car after opening and airing 15 minutes, 50 per cent. 
[4- means growth, — no growth.] 
Organism. 
Place of exposure in car. 
Result. 
B. coli communis 
Toilet room 
Smoking room 
4- 
Floor, main sleeping compartment 
4- 
Berth, upper No. 4 
+ 
Berth, lower No. 10 
B. diphtherise 
Smoking room 
+ 
Drawing-room 
+ 
Floor, main sleeping compartment 
+ 
Berth, upper No. 6 
4- 
Berth, lower No. 5 
+ 
B. typhosus 
Toilet room 
4- 
Drawing-room 
4- 
Floor, main sleeping compartment 
Berth, upper No. 3 
- 
Berth, lower No. 12 
+ 
B. subtilis 
Smoking room 
4- 
Drawing-room 
+ 
Floor, main sleeping compartment 
4- 
Berth, upper No. 10 
4- 
Berth, lower No. 6 
4- 
B. tuberculosis 
Floor, main sleeping compartment 
+ 
Sputum exposed by Wilson method and injected into guinea 
pig; pig chloroformed 63d day; increased 175 grams in weight; 
tubercular lesions in liver, spleen, and lymph glands. 
Floor, main sleeping compartment 
+ 
Sputum exposed on carpet and injected into guinea pig; pig 
died of tuberculosis on 50th day. 
Control guinea pig died of tuberculosis 37th day. 
