"Aerify" Quotes from Famous Books
 ... take out the dead shrimps, and in the same water place a good handful of ulva (sea-lettuce, sea-salad), one of the most common of all marine plants, and place the aquarium in a strong and direct sunlight, by this means exciting the ulva to work, or, as it is termed, aerify the water. In less than an hour's time a froth will be seen forming on the surface of the water, and adhering to the sides of the aquarium. Now observe the ulva closely, and from its edges and surface very fine threads of silvery bubbles are ...
— Harper's Young People, August 17, 1880 - An Illustrated Weekly • Various |
