Sibyl Horner, Sydney Alexander Henry, and occupational skin disease.

Occupational skin disease was, and remains, a major cause of morbidity, accounting for many thousands of hours lost from work each year. Investigating the causes, and seeking preventive measures, occupied much of the time of the early Medical Inspectors of Factories. Two of the inspectors, Sydney Henry and Sibyl Horner, became specialists in certain types of skin disease.