Conversations on Chemistry, V. 1-2 / In Which the Elements of that Science Are Familiarly Explained and Illustrated by Experiments

by Mrs. Marcet

The lungs, then, are like bellows, and the chest is the power that works them.

MRS. B.

Precisely so. Here is a curious little figure ([Plate XV.] Fig. 5.), that will assist me in explaining the mechanism of breathing.

[Plate XV.]

Vol. II. p. 250

Fig. 5. A.A Glass Bell. B Bladder representing the lungs. C Bladder representing the Diaphragm.

[Larger view] (complete Plate)

CAROLINE.

What a droll figure! a little head fixed upon a glass bell, with a bladder tied over the bottom of it!