Such advice can be given only in the case of a few pathological characters such as color-blindness, night-blindness, or Huntington'sChorea.
2
Huntington'sChorea, which usually appears to be a good dominant, although the last investigators (Muncey and Davenport) found some unconformable cases.
3
The silly, dancing, posturing, wiry movements, and the facial distortion observed in Huntington'schorea would hardly be mistaken by a careful observer for athetosis.