It is our wish in writing this paper that all physicians who see industrial workers at some time in their practice become familiar with the problem of arsine poisoning. True, it is of more importance and interest to the industrial physician. However, any one could have this emergency as his problem at any time. People with an acute illness may bypass the industrial physician and seek aid from the family physician or from one of the specialties. The urologist may be called for the hemoglobinuria, the internist or surgeon because of abdominal pain, etc. Up to this time, little attempt has been made to present the bits of knowledge to the medical profession except to those whose interests are in the field of industrial medicine or hygiene. Arsine poisoning is a definite clinical entity. The recognition is relatively simple if one is only cognizant that such a disease process exists.