1. A positive Babinski was found in 92.3 per cent of cases after the onset of unconsciousness and in 74.2 per cent prior to the onset of unconsciousness in patients undergoing insulin treatment for schizophrenia.2. The positive Babinski has no significance in determining a stage of coma during the insulin hypoglycemia.3. The loss of corneal reflexes is suggested as a reliable sign for determining a deeper stage of coma.4. [Dr. Max Sherman gave assistance in reading records and correcting the manuscript.]Abstract Teaser