Phototelegraphy -- See Also the narrower term Telephotography Here are entered works on the photography of objects at a distance. Works on the transmission of pictures by telegraph or telephone wires, or by wireless telegraphy are entered under Phototelegraphy.
Photovoltaic Cells -- See Also the narrower term Solar cells Here are entered works on photovoltaic cells which are designed to supply power to a component or system.
