[Wooly hair].

Two cases of wooly hair are described. Genealogical studies of the first proband has revealed that the trait is directly transmitted in six generations. The ratio of persons with wooly hair to those with normal hair in this pedigree was 18:14, rohile sex ratio was 1:1. This is in concordance with the autosome dominant type of inheritance. Another proband's parents and other relatives had normal hair. His psychic and physical development was normal. The case is treated as a new mutation of the trait.