DrF. W. Reilly, assistant commissioner of health, Chicago, has courteously furnished us, for advance publication, the report on "Epidemic Cerebrospinal Meningitis in Chicago," by Dr. W. J.Class, the first instalment of which appears in this number of theJournal. This report, through an abstract which appeared in the monthly bulletin issued by the health department, several months ago, has caused widespread comment in this country and abroad. Cerebrospinal meningitis has been, and is, quite prevalent throughout the country and the thorough discussion of the subject here given is timely and important.