Sleep has, next to The Weather, probably been humanity's greatest source of conversation. ''How did you sleep last night?"; "Where are you going to sleep?"; etc. etc. Periodic attempts are made to find out something about Sleep. Last week from Colgate University, Hamilton, N. Y., came news of another sleep investigation, timed to publicize a book on the subject.*
Dr. Donald Anderson Laird, 32-year-old director of this Baptist University's psychological laboratory, kept eight students up all night. They studied, played games, held a mock session of the U. S. Senate. Their reactions were...