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Discharge tubes for experiments on effects of cathode rays

Geissler tubes.

Discharge tubes- various types of anode and cathode.

Geissler tubes of complicated design.

Geissler tubes with complicated design.

Geissler tubes with a complicate design.

Crookes' type discharge tubes

Discharge tube with anode in shape of Maltese Cross

Discharge tubes: aluminium disc cathode and rod anode

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Discharge tubes for experiments on effects of cathode rays

Geissler tubes.

Discharge tubes- various types of anode and cathode.

Discharge tubes- various types of anode and cathode.

Geissler tubes of complicated design.

Geissler tubes of complicated design.

Discharge tubes- various types of anode and cathode.

Geissler tubes with complicated design.

Geissler tubes with a complicate design.

Geissler tubes with complicated design.

Crookes' type discharge tubes

Geissler tubes.

Discharge tube with anode in shape of Maltese Cross

Discharge tubes: aluminium disc cathode and rod anode