—In a previous editorial we called attention to the experiments of Mr. Cheyne on the production of suppuration by bacteria.
Since that time he has made two further reports upon the same subject. Incidentally he has elicited several interesting facts.
In order to test the degree of virulence when grown away from oxygen; in addition to the experiments described in our former editorial upon the growth of micrococci in eggs, Mr. Cheyne cultivated them in various gasses.
He found, contrary to the views of Dr. Ogston, that they grew best in oxygen gas, next in air, and feebly and slowly in hydrogen and carbonic acid gas.
The virulence of the micrococci did not seem to be materially modified by the atmosphere to which they were subjected.
Another point of interest elicited by one series of inoculation experiments, was the fact that the micrococci appeared to be eliminated from the