The tables in Group 4 show the results of the experiments with cultures of Staphylococcus pyogenes aureus:
CONSIDERATION OF EXPERIMENTS WITH STAPHYLOCOCCUS.
1/1000 for fifteen minutes shows marked inhibitory effect. A and C show no growth throughout. On the second day B and D show fractional growth which increases gradually on the third and fourth days, when it equals less than ½ control growths.1/1000 for thirty minutes gives a marked inhibitory effect. The first day there is no growth. On the second day A equals 1/6 control growth, B shows a point of growth, C is negative, and D gives 3/7 of control growth. On the third and fourth days B and C show simply a large point, while A and D give a gradual increase, equaling less than ½ control growth.1/1000 for sixty minutes shows a marked inhibitory effect. On the first day there is