Browse Items (3442 total)

a test tube with rubber bung filled with grass stems, possibly spills for burning to detect presence of gasses

a cylindrical glass laboratory jar with rimmed top and base

glass dome with bell shape and open neck sealed with cork. Suspended from a thread is a cardboard sling, possible for suspending a magnetised needle

Cat skin, cream, ginger, brown and black markings on fur; one patch on rear side, used for electro statics. Used in lecture demonstrations for generating charge by rubbing

a brass balance arm with marking 1 to 12 on each arm and grade marks every half unit. A metal pointer is fixed to the upper edge of the balance centre; part of a weighing balance mechanism

a hollow cylinder of brass with a cross bar forming a long armed 'T'. There is a pin hole at each end of the 'T' bar. The cylinder has a decorative knob on one end, the other end being open and slightly serrated as if for cutting

Contains a rotating vane; presumed to have been acquired with others as a set. Glows blue when supplied with 2.7 kV.

two glass bulbs terminate a right angled U tube, held against a white card by wire. Some red colouration may be a liquid residue

Whelk shell that fluoresces in the cathode rays; presumed to have been acquired as a set with five others

glass handle with brass tapped ferrule; possibly for handling electrically charged objects