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Psychrometer

Spectro-photometer according to Koenig-Martens

Leyden jar with movable coatings, conical

Small induction coil, 3 cm spark

Reflection apparatus, fall machine

Air pump plate with manometer and receiver

Apparatus to determine the proportion of heat energy to the total energy of an incandescent lamp

Glass sphere with liquid for centrifugal machine

Voltmeter

Model of a telephone