In 1925 Fox and Fowlkes1 described 3 cases of ringworm of the scalp (tinea capitis) in adults. A review of the literature by these authors revealed about 70 similar cases in Europe and America. A good deal of effort has been spent since that time to discover the cause of nature's spontaneous cure at puberty and the high degree of immunity of adults to the type of ringworm of the scalp caused by Microsporum audouini. In 1946 Rothman and his co-workers2 identified the fungicidal activity of sebum as residing in the saturated fatty acids, and this problem is apparently near its solution.
The following case of infection of the scalp with M. audouini seems worthy of report because it occurred during pregnancy. I have found no mention of a similar case.
REPORT OF A CASE
L. M. R., an 18 year old Negro woman, complained of a bald