The State of Illinois has recently made an important contribution to the literature of industrial hygiene. About a year ago, the Illinois Commission on Occupational Diseases1 began its work of investigation and the results of this investigation together with recommendations for the legal regulation of certain dangerous trades have been sent to the governor of the state.
We understand that though other states have made formal inquiry into industrial accidents, Illinois is the first to attempt a study of industrial diseases.
The commission had only about ten months in which to work and wisely decided to make an intensive study of one or two restricted fields, such as that of industrial poisons and of caisson disease, rather than to make a general survey of the whole subject. By choosing the poisonous trades rather than the dusty trades they were able to show clearly the causal connection between occupation and