MACMILLAN

MAGNETIC TAPES; PHONOGRAPH RECORDS; TRANSPARENCIES FOR PROJECTION; FILMSTRIPS; FILM LOOPS; MOTION PICTURES; AND SCIENCE KITS COMPRISED PRIMARILY OF SCIENTIFIC INSTRUMENTS (NAMELY, BALANCES AND WEIGHTS, MAGNIFYING GLASSES, MICROSCOPES AND SLIDES, THERMOMETERS), LABORATORY APPARATUS (NAMELY, BEAKERS, FLASKS, TEST TUBES, VIALS, CUPS, TRAYS, BOTTLES, DISHES, MATS, SCOOPS, TWEEZERS, FORCEPS, DROPPERS, STIRRERS, FILTERS AND BRUSHES) AND MATERIALS FOR DEMONSTRATING VARIOUS PHYSICAL PROPERTIES AND PROCESSES SUCH AS BALANCE, ELECTRICITY, MAGNETISM, THRUST, GRAVITY, ELASTICITY AND FLOTATION, SOLD BOTH SEPARATELY AND AS A UNIT