"This hygrometer consists of two thermometers a and b similar to each other in all respects except that one of them has a piece of muslin tied closely over the surface of its bulb c, and kept constantly wet by a few threads of cotton which connect it with the water in the vessel d. the water then which rises from the vessel by capillary attraction spreads over the muslin, and evaporates from its surface with more or less rapidity according to the dryness or moistness of the air; and the greater the dryness of the air the greater is the difference between the observed readings of the dry and the wet thermometers." — Encyclopedia Britannica, 1893

Bulb Hygrometer

"This hygrometer consists of two thermometers a and b similar to each other in all respects except that…

Three wet cats

Cats

Three wet cats

"These fishermen chanced a large haul to make, / Were fearful lest the fish their net would break; / Down in the water plunge, make sure their net, / The fish they seize; they care not for the wet."—Barber, 1857

He That Would Catch Fish, Must Not Mind Getting Wet

"These fishermen chanced a large haul to make, / Were fearful lest the fish their net would break; /…

A case used for growing a plant that requires a moist atmosphere.

Wardian Case of Iron

A case used for growing a plant that requires a moist atmosphere.

"A clothes sprinkler may be made from a milk bottle. In it place a large cork, insert a garden sprinkling spray in the cork. This will dampen the clothes evenly."—The Federal Digest, 1921

Clothes Sprinkler

"A clothes sprinkler may be made from a milk bottle. In it place a large cork, insert a garden sprinkling…

"Over the upper end of a cylindrical receiver, tie tightly a wet bladder or sheet of writing paper and allow it to dry. Then exhaust the air. The bladder will be forced inward, bursting with a loud noise. Replace the bladder with a thin sheet of india-rubber. Exhaust the air. The rubber sheet will be pressed inward, and nearly cover the inner surface of the receiver." -Avery 1895

Vacuum

"Over the upper end of a cylindrical receiver, tie tightly a wet bladder or sheet of writing paper and…