Army Cadets Study Academic SubjectsBOZEMAN, Aug 9 —Classesin academic subjects will start at Montana State College for the Armyspecialized training unit Tuesday,and continue indefinitely with periodic changes in personnel, Maj. Joe L. Ostrander, commanding officer, said Monday.Major Ostrander is also in command of the Montana State college training center which includes the college training detachment • aircrew* and is head of the college reserve officers training unit.The academic training wiil Include English, history, physics, geography, mathematics and chemistry. All academic teaching will be done by the college faculty.