Heavy Duty Rectangular Retort Base and 23.6" Rod Set, 8 x 5", 2.75lbs Glass Flasks_Volumetric Flasks completing the positive-rail half of

completing the positive-rail half of the long-haul plug-to-plug patch-wire pair

and titrating with a burette

Hand-painted pigeon dissection model with numbered structures reveals avian internal anatomy and flight adaptations for ornithology teaching

Innovating Science microbiology kit is used to grow

5 by 3 inch unit for maintaining classroom magnet inventories

Heavy Duty Rectangular Retort Base and 23.6" Rod Set, 8 x 5", 2.75lbs Glass Flasks_Volumetric Flasks completing the positive-rail half ofLighter 2. 75 lb version of the 8 by 5 inch rectangular retort set pairs a rubber footed steel base with a 23. 6 inch 12mm rod for portable apparatus mounting.