Sterilize THE UNFIT GENERAL ARTICLES CLARENCE M. HINCKS General Director, The National Committee tor Mental Hygiene (Canada) Our society is menaced by race deterioration, says this authority. His remedy: Prevent the mentally unfit from having children SUBNORMALITY and mental unfitness seem to be on the increase in Canada. There is evidence that at the present time about 10% of our population vary in mental health from profound mental disability to a state that might be called marginal disability.