Nouvelle pratique dermatologique

The first 240 pages of volume VII are the contributions of Sabouraud alone and in collaboration with Pignot on the hair and sebaceous glands. There is so much disagreement among dermatologists as to what constitutes pityriasis simplex, pityriasis steatoides and the seborrheic states that every one should take advantage of the opportunity of reading this clear and logical presentation of the subject. According to Sabouraud, pityriasis of the scalp is an exfoliation of the corneous layer of the skin due to the Pityrosporon of Malassez. The two photomicrographs on pages 28 and 29 showing the similarity between sections of pityriasis simplex and pityriasis versicolor are convincing. Most of the textbooks describe seborrheic dermatitis as beginning in the scalp and spreading down over the face. Sabouraud reverses the sequence of events and insists that the seborrhea begins on the face and spreads to the scalp. The apparently oily masses formed in