July 1930 Issue
In addition to many IAEI section reports, this issue contains articles such as:
How to Classify Hazardous Locations (page 3) “The Classification of Hazardous Locations is a subject which can be treated in little more than a very general manner” Really? We have come a long way!
Fires in Radio Receiving Stations (Page 13) This article points out some of the causes and accidents. 27 radio fires were reported during 1929 to the New York Board of Fire Underwriters.