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COMPOUND BAR-LIMB MICROSCOPE WITH A 'CAPTAIN PERRY' ARM

MAKER:SWIFT

MODEL: 'PRESENTATION MICROSCOPE'

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c.1877

THE SWIFT FROG PLATE:

swiftpres frog plate



swiftpres frog plateThe frogplate is shown alone to the left and attached to the stage of the microscope at the top of the page. It is a device for restraining a frog or fish to study the circulation of the blood in capillaries. This is done by visualizing a relatively transparent part of the animal, namely the web foot of the frog, or the tail of a fish.