Currents in air by convection
—— metals by convection
—— oil of turpentine by convection
Curved lines, induction in
Curves, magnetic, their relation to dynamic induction .
Daniell on the size of the voltaic metals
Dark discharge,
——. See Discharge, dark
Dates of some facts and publications note after
Davy's theory of electro-chemical decomposition
—— electro-chemical views