boob tube

Also, because a tube of lipstick stands in for the “i” in “science.”

Drone: the largest tube of a bag-pipe, giving forth a dull heavy tone.

Should the vapor not condense well, the test-tube may be immersed in a glass of cold water.

For comparison, the gas may be passed through a test-tube containing an equal amount of distilled water.

At once cover the mouth of the tube with a filter-paper cap moistened with saturated aqueous solution of silver nitrate (1:1).

The best pipet is a small glass tube which has been drawn out at one end to a tip with rather small opening.