Sterile Frog Ringer's Solution, 200mL Rod Material_Stainless Steel the shallow apex producing minimal

the shallow apex producing minimal deviation for studying small-angle approximation in dispersion experiments

Greatly-enlarged ovum model on a 5 x 5 inch base exposes the zona pellucida and corona radiata surrounding the cell

a Hall's cart

For Archimedes' principle experiments

One-gallon F-style reusable metal storage can with a threaded screw-on cap for a watertight seal

Sterile Frog Ringer's Solution, 200mL Rod Material_Stainless Steel the shallow apex producing minimalAmphibian specific 200mL of sterile Ringer's frog solution, the isotonic saline composition for amphibian physiology experiments where mammalian Ringer's would mismatch the species' tonicity needs.