\Vo*lu"me*scope\, n. [Volume + -scope.] (Physics)
An instrument consisting essentially of a glass tube provided
with a graduated scale, for exhibiting to the eye the changes
of volume of a gas or gaseous mixture resulting from chemical
action, etc.

\Vo*lu"me*scope\, n. [Volume + -scope.] (Physics)
An instrument consisting essentially of a glass tube provided
with a graduated scale, for exhibiting to the eye the changes
of volume of a gas or gaseous mixture resulting from chemical
action, and the like.