Mesozoic Perisphinctes Ammonite Fossil Replica, 4cm Capacity_1.7mL and bladder for individual handling

and bladder for individual handling during anatomy teaching of the urinary tract and renal filtration flow

5 by 4-inch ventilation apparatus modeling historic mine-gallery airflow and domestic chimney convection through a candle-driven hot-air-rise demonstration

Carefully lagged nickel-plated copper 3 by 2-inch inner cup inside a 4 by 2

Squat-form porcelain crucible with lid holds 100mL in glazed construction for high-temperature combustion and chemistry heating procedures

Mesozoic Perisphinctes Ammonite Fossil Replica, 4cm Capacity_1.7mL and bladder for individual handlingPerisphinctes ammonite fossil replica measures 4cm across with coiled shell detail for Mesozoic cephalopod evolution teaching.