REPORTS FROM SEVERAL SCHOOL DISTRICTS ON THE USE OF AND PLANNING OF LANGUAGE LABORATORIES ARE PRESENTED. LABORATORIES SHOULD BE ARRANGED FOR FLEXIBLE USE. THE AVERAGE HIGH SCHOOL STUDENT CAN USE A LAB PROFITABLY FOR 20 TO 25 MINUTES. THERE ARE THREE DIFFERENT TYPES OF LANGUAGE LABORATORIES THAT ARE DESCRIBED. THE SATELLITE LAB IS DIVIDED BY A GLASS PARTITION. THE REGULAR CLASS WORK TAKES PLACE ON ONE SIDE WHILE LANGUAGE LAB IS CONDUCTED ON THE OTHER SIDE. THE PERIMETER LAB HAS CLASSROOM WALLS LINED WITH PLYWOOD BOOTHS, THE CENTER OF THE ROOM IS UNDISTURBED. PERIMETER LABS HAVE AN ECONOMIC ADVANTAGE IN THAT THEY CAN BE INSTALLED FOR EACH LANGUAGE CLASSROOM FOR LESS MONEY THAN A CONVENTIONAL LANGUAGE LAB. THE MOBILE LAB CARRIES THE PERIMETER LAB IDEA ONE STEP FURTHER IN THAT CONDUIT IS INSTALLED ALONG CLASSROOM WALLS WITH JACKS INTO WHICH STUDENT CAN PLUG EARPHONES. THE RESULT IS A COMPLETELY MOBILE LAB THAT CAN BE MOVED FROM ROOM TO ROOM. A MOVABLE CONSOLE STORES THE HEADSETS AND MATERIALS TO CONDUCT A LESSON. PRIVACY OF BOOTHS IS LACKING, BUT HEADSETS AND MIKES AFFORD A SENSE OF ISOLATION. THE ARRANGEMENT ALLOWS TWO ROOMS TO BE OUTFITTED FOR THE PRICE OF ONE. WAYS OF MAKING OPTIMUM USE OF LANGUAGE LABS INCLUDE SIMPLIFYING WIRING SYSTEMS, PROVIDING FOR PUPIL PRIVACY, PURCHASING ELECTRONIC EQUIPMENT, AND OVERCOMING MECHANICAL AND PHYSICAL PROBLEMS. THIS ARTICLE WAS PUBLISHED IN "SCHOOL MANAGEMENT," APRIL 1963.