The September 1931 issue contains:
Rural Electrification Hazards (Page 3) Rural citizens should be protected from new hazards due to the “Revolutionary Change” brought about by the electrification of farms and small towns.
Electrical Fatality in Oven (Page 25) The victim was repairing an oven in a bakery. He had his head and shoulders in the oven and a frayed extension cord he was using made contact with the metal inside.
Difficult Obtaining Explosion-Proof Motors (Page 31) Back in 1931, explosion proof motors were difficult to obtain as this article explains.