559 Thenard found in 100 parts-albumen, 70; gelatine, 17; phcsphate of lime, 5; water, 3; and loss, 5 parts. Frequeitcy of occM?-Kce.—The disease is generally characterized by those who have specially devoted their time and attention to the study and treatment of cutaneous affections, I and by those who have recorded their experience of it in gene-I I .ral practice, as being very rarely met with in England. Thus ' i we find Erasmus Wilson, in his treatise on Ringworm, writing, "In the course of

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... my long experience with the St. Pancras Infirmary, I have not seen more than six cases of favus;" and Willis, in his account of the disease, states that "several ' , months will often elapse before a single case of the trichosis ' , (porrigo) lupinosa is observed among the thousands of out-and ' ,