Details
A yellow-green liquid filled Geissler tube;
a twist Geissler tube; three other Geissler tubes; a Crooke's Maltese Cross tube; a straight Crooke's tube; and a quantity of discharge tubes containing various gasses (A Lot)
a twist Geissler tube; three other Geissler tubes; a Crooke's Maltese Cross tube; a straight Crooke's tube; and a quantity of discharge tubes containing various gasses (A Lot)