Synthetic Permanent Slide Mounting Medium, 500mL Chemical_Sodium Sulfate Cast-metal Newton's-Second-Law apparatus on a

Cast-metal Newton's-Second-Law apparatus on a 10 by 2

and inner ear sections support detailed auditory anatomy teaching at 3x enlargement for classroom visibility

Stainless steel water bath measures 360 x 260 x 135mm with four vessel positions for multi-sample gentle heating in chemistry and microbiology work

providing the lowest-value reference in the line for low-resistance Ohm's-law and bridge work

Spare 3-inch O-ring drive belt sized to the smaller Van de Graaff pulleys

Synthetic Permanent Slide Mounting Medium, 500mL Chemical_Sodium Sulfate Cast-metal Newton's-Second-Law apparatus on aSynthetic resin 500mL alternative to natural Canada balsam, the larger volume permanent mounting medium for histology and microscopy slide preparation with consistent optical clarity over time.