1. Talipes equinovarus is a specific type of club foot which has a genetic basis. Its occurrence along with certain neurological disorders has been noted.

2. An investigation of its incidence in 1,447 mental defectives, excluding those with cerebral palsy, revealed an incidence of 228 per 1,000, which is about ten times that for the general population.

3. There may be an upset early in embryonic development to account for the co-existence of both mental deficiency and talipes equinovarus.