3D Plant Cell Division (Meiosis) Model, 24 x 18", Hand-Painted Size_Small Rolled-rim parallel-sided copper calorimeter at

Rolled-rim parallel-sided copper calorimeter at 4 inches tall by 2

Ranvier-pattern hand microtome uses a screw-thread mechanism for precise specimen advancement during thin-section cutting and microscope slide preparation

this insulated 4mm-stackable safety lead carries up to 12A through nickel-plated split-hollow pins for branched-circuit student work

Closed ring design provides continuous support on this plated mild steel retort ring

Battery-free analog mechanical stopwatch reading to one-tenth of a second

3D Plant Cell Division (Meiosis) Model, 24 x 18", Hand-Painted Size_Small Rolled-rim parallel-sided copper calorimeter atThree dimensional plant meiosis model traces chromosome pairing, crossing over, and reduction division through successive hand painted stages on a mounted base.