UNTIL a few years ago, satisfactory cooperation in medical research between a commercial house and an academic research group seemed a definite impossibility. The academic group vividly remembered the pains and disappointments of what Dr. John Stokes calls the "scrimmage era" of pharmaceutical manufacturing, and eyed commercial houses with "invincible distrust, aroused by admittedly distrustdeserving tactics in ultra-distrustful minds." As time went by, however, certain firms gradually expiated the sins of their fathers; and today