|Commando Training Begun at Princeton | Obstacle Course Being Used ‘| By 800 R. O. T. C. Cadets Special to THE NEW YorRK TIMES. PRINCETON, N. J., July 18— Training in fundamental com- mando techniques began this week for 800 cadets in the Princeton University Field Artillery unit of the Reserve Officers Training Corps with the opening of a spe- cially designed obstacle course on a wooded hillside near Lake Carnegie. Planned by Lieutenant Raleigh ansl Jr., instructor in military ‘| tactics, to supplement the univer- sity’s compulsory athletic program ‘land give to R. O. T. C. students practice in surmounting barriers commonly met in combat, the ‘| course was constructed largely by) .| undergraduates. All cadets are required to nego- | tiate the course’s hurdles, sheer walls, tunnels and entanglements once a week. Emphasis at present \is being placed on developing the right technique in getting over the obstacles, although eventually stu- dents will be timed for speed inj covering the half-mile steeple- | | chase. Several cases of poison ivy have developed among men who rolled, fell or staggered from the limits of the course, and a hand-over-hand climb up a slender twenty-foot rope has made blistered hands the rule. ns