eudiometer
Date: circa 1785
Inventory Number: 0028a
Classification: Eudiometer
Subject:
Maker: English ?
Cultural Region:
Dimensions:
50.5 x 10 cm (19 7/8 x 3 15/16 in.)
Material:
Accessories: comes with a clamp (object 0028b)
Bibliography:
The Apparatus of Science at Harvard, 1765-1800
Description:
Heavy glass tube with twenty cubic inch capacity is closed at one end and flares out to broad lip at open end. Scale, etched on glass, is calibrated in cubic inches. Stand and pneumatic trough are somewhat later, and have inv. number 0028b (stand) and 1998-1-0045. In the B&W picture, this eudiometer is the one on the right.
Signedunsigned
FunctionEudiometers were used to measure the volume of gases. In design they were hardly more than simple, graduated flasks. When used, the experimenter filled them with water and inverted them in a water-filled tank or pneumatic trough. Gas then was bubbled into the inverted flask. The amount of water it displaced could be measured on the calibrated scale.
Published ReferencesDavid P. Wheatland, The Apparatus of Science at Harvard, 1765-1800 (Cambridge: Harvard University Press, 1968), 165.
