The great number of diseases peculiar to the skin which present themselves for treatment are well worthy of the most earnest and anxious consideration of the general practitioner as well as of the specialist. It is only of recent years that the varieties of skin diseases have been made a special subject of study by numerous physicians in this country and abroad, and we may point with pride to the rapid strides made as regards the pathology, diagnosis, prognosis and treatment of these formerly obscure and obstinate diseases.