INDEX
Accumulator
Air level
Aneroide barometer
Apparatus for vibrating plates
Bell for sound in vacuum
Cagniard de la Tour's
siren
Camera obscura
Carbon microphone
Cinematograph
Communicating vessels
Composition of forces
Compound microscope
Conductivity box according with
Ingenhouz's
principle
D'Arsonval
galvanometer
Davy
lamp
De la Rive
electric egg
Elastic rings
Electric bell
Faraday
hood
