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Source

Observations from the source

Gallenkamp (c. 1939)

FURNACE, COMBUSTION, Babo-Erlenmeyer’s

Gallenkamp (c. 1939)

FURNACE, COMBUSTION, Bunsen-Erlenmeyer’s

Gallenkamp (c. 1939)

FURNACE, COMBUSTION, with Finkener’s simultaneous gas and air regulation

Gallenkamp (c. 1939)

FURNACE, COMBUSTION, Glaser-Finkener’s

Gallenkamp (c. 1939)

FURNACE, FLETCHER’S TUBE, for organic analysis