A scene from the story, When The Animals Were At War. The elephants poured water; the monkeys…
Hydraulic tourniquet, also called Barker's mill. It consists of a vessel of water free to rotate about…
Nicholson's Hydrometer, consists of a hollow cylinder of metal with conical ends, terminated above by…
Nicholson's Hydrometer, consists of a hollow cylinder of metal with conical ends, terminated above by…
"As he sang these tender strains, the very ghosts shed tears. Tantalus, in spite of his thirst, stopped…
"The lungs fill up most of the cavity of the chest. One lies on either side of the heart which is in…
"A filter to strain out the germs at the house tap. Such a filter must be cleaned and boiled weekly."…
A class of suctorial worms found in bodies of water, marshes, and other moist places. There are many…
A name derived from the lotus of Greek legend, and applied to various species of plants related to the…
An animal native to the waters of South America, Australia, and West Africa. It is herbivorous, subsisting…
Interior of the ear. There is external to the head a wide-mouthed tube, or ear-trumpet (a), for catching…
Harmless bacteria so numerous in drinking water that a person often takes a half-million into his stomach…
How the well often becomes impure and carries disease. A well near a barnyard or cesspool is likely…
A genus of aquatic herbs of the mustard famil, known generally as the water-cresses. The leaves in most…
Very much resembles our pond lily with the exception that the color is of a brilliant purple on the…
Very much resembles our pond lily with the exception that the color is of a brilliant purple on the…
Very much resembles our pond lily with the exception that the color is of a brilliant purple on the…
Very much resembles our pond lily with the exception that the color is of a brilliant purple on the…
Very much resembles our pond lily with the exception that the color is of a brilliant purple on the…
A border design also known as the zigzag, the wave crest, or the water motif. It consists of a series…
Sometimes called the tree of life. Always associated with religious belief. It symbolizes Divine power…
Sometimes called the tree of life. Always associated with religious belief. It symbolizes Divine power…
Sometimes called the tree of life. Always associated with religious belief. It symbolizes Divine power…
Sometimes called the tree of life. Always associated with religious belief. It symbolizes Divine power…
This is used to rub the gloss and roughness off of painted, enameled and varnished surfaces with pumice…
An edible bivavle mollusk, closely allied to the mussels, and which forms an important article of commerce.…
A genus of webfooted water birds remarkable for their broad bill with a pouch under it. The bill is…
A genus of fish including many species, and found widely distributed both in salt and fresh water. They…
A genus of birds that includes about 150 species, whih are distributed throughout the world. They include…
The general name of certain genera of carnivorous mammals, havin feet adapted for swimming, and being…
A device used for holding a gas or water main in position while it is tapped for a service pipe.
A gasteropodous mollusk, differing from the slug in having a large, spiral shell. The species are very…
A flow of water from the interior of the earth, caused by the water resulting from rain or snow.
A Spanish water carrier, which usually consisted of a donkey and pottery attached to it.
An animal that lives in stagnant water. It is so small that it can only be seen with a microscope.
This diagram shows waters transition from rain, to ground water, and back up to rain again.
This illustration shows a flame being held under cold water, turning the water in to a gas.
This illustration shows an arrangement by which the proportion by weight of hydrogen and oxygen in water…
A tube of unglazed porcelain, closed at one end, through the pores of which the water is forced by its…
This illustration shows oxygen escaping leaves when they are placed in water and then in sunlight.
This illustration shows a tower filled with quicklime, being used to filter out gas from water vapor.
This illustraion shows a "fountain" experiment. This experiment is used to determine specific elements…
This illustration shows the colonial forms of unicellular green algae: A, Pediastrum, the plants of…
This illustration shows the structure of dicotyledonous seeds: A, nearly mature seed of Lepidium. The…
This illustration shows the jaw of a Greenland Whale. The Greenland Whale uses this massive jaw to filter…
This illustration shows the flipper of a whale. The whales use their flippers to propel themselves through…
Small, swimming, decapod crustaceans classified in the infraorder Caridea, found widely around the world…