Details
A galvanometer,
by Philip Harris & Co.; another by Pye; another galvanometer; a collection of spherical, conical and other conductors; a pair of discharge forks; and other items. (A lot)
by Philip Harris & Co.; another by Pye; another galvanometer; a collection of spherical, conical and other conductors; a pair of discharge forks; and other items. (A lot)