Hare's Apparatus for Comparing Liquid Densities, 25" Material_Iron Greatly-enlarged cardiac muscle model exposes

Greatly-enlarged cardiac muscle model exposes myocardial fiber structure

Decade capacitance box stepping 10nF to 100nF in 10nF increments at plus-or-minus 5% on 63V

isolating ion behavior in electrolysis and voltaic-cell investigations

a 45mm hollow equilateral acrylic prism holds varied liquids for refraction-index-by-medium investigations

dual bore sights

Hare's Apparatus for Comparing Liquid Densities, 25" Material_Iron Greatly-enlarged cardiac muscle model exposesThree limbed glass tube on a 61cm scaled wooden stand with a pinch clamp on the center limb, comparing liquid densities by the differential heights of drawn columns.