Pulsometer
a form of pump for raising water, by the condensation of steam, in a vessel situated at such elevation above the water supply that the atmospheric pressure will raise the water to the chamber and operate the valves.
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Pulteney
WILLIAM, Earl of Bath, an English statesman; born in 1684. He studied at Oxford and entered Parliament where he won a brilliant reputation. At first the friend of Walpole, he became the head of a party of malcontent Whigs, the "Patriots," in 1728, and was henceforth the minister's bitterest opponent. He was Bolingbroke's chief assistant in the paper called the "Craftsman," which involved him in many political controversies. In 1731 he wrongly ascribed to Lord Hervey the authorship of a scurrilous pamphlet; a duel was the consequence, fought with swords in St. James' Park, when both combatants were slightly wounded. On the resignation of Walpole in 1741 Pulteney was sworn of the privy-council, and soon afterward created Earl of Bath; and from that time his popularity was gone, His prose was effective and his verse graceful. He died in 1764.
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Pulvermacher Chain
a form of galvanic battery consisting of a series of small wooden cylinders on which a zinc and copper wire are coiled side by side, but without touching each other. The zinc of one cylinder, touching the copper of the adjacent one, forms with it a couple. The whole is immersed in vinegar diluted with water.
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Pumice-stone
A spongy lava of a very porous nature, and so light that it will float on water. It is found in volcanic districts, being composed chiefly of silica and alumina, with some potash and soda. See POLISHING SUBSTANCES. Pure Iron is of very rare occurrence, and can be obtained only by purely chemical methods in the laboratory. See NATIVE IRON. Putty is whiting and linseed-oil kneaded into a thick paste. See WHITING.
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Pump Center
The small, pointed steel shaft in the center of a universal head, which is used for centering the work.
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Pumpelly
RAPHAEL, an American geologist; born in Owego, N. Y., Sept. 8, 1837. In his early life he conducted explorations for the governments of Japan and China; was professor at Harvard for several years; and from 1879 to 1892 geologist in charge of the Archæan division of the United States Geological Surve Survey. His chief works are: "Geological Researches in China, Mongolia, and Japan" (1867): "Across America and Asia" (1870); "Mineral Industries of the United States” (1886); "Geology of the Green Mountains" (1894); "Explorations in Central Asia" (1905), etc. His "Reminiscences" appeared in 1918. bread, made from unbolted rye, which forms the chief food of the Westphalian peasants.
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Pumpernickel
a species of coarse struggle between the two rival powers; it ended with decisive victory to the Romans. The third (149-146 B. c.) was for the destruction of Carthage, which was effected in the last-named year.
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Punch and Judy
a puppet-show at one time popular, and exhibited frequently in the streets. The origin of the story of Punch and Judy is somewhat uncertain. An English ballad of the eighteenth century recounts the adventures of the couple, but certain authorities ascribe the story to Fiorillo, an Italian comedian of the seventeenth century. The tale runs that Punch in a fit of jealousy strangles his infant child. Judy attacks Punch to be avenged. Then Punch seizes a bludgeon and beats Judy to death, throwing the two bodies into the street. An officer finds the bodies, and Punch is shut up in prison. He makes his escape, however, and goes through various adventures, always happy and always getting the best of everyone. He drives the doctor who visits him when he is ill out of the house, has a set-to with Death, whom he beats, and finally outwits the Devil. "As pleased as Punch," has come to be a common expression.
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Puncheon
a liquid measure of capacity containing from 84 to 120 gallons. PUNCHINELLO. See PUNCH.
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Punctuation
the act, art, or method of punctuating or pointing a the act, art, or writing or discourse; se; method of dividing a discourse into sentences, clauses, etc., by means of points or stops. The first printed books had only arbitrary marks here and there, and it was not till the 16th century that an approach was made to the present system by the Manutii of Venice.
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Pungwe
a river of Portuguese East Africa, forming the principal waterway to Manicaland and Mashonaland; its mouth is situated about 25 miles N. E. of Sofala and 130 S. W. of the Zambezi delta.
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Punic
the language of the Carthaginians. It was offshoot of the an mans Phœnician, belonging to the Canaanitish branch of the Semitic tongues.
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Punishment
a penalty inflicted on a person for a crime or offense, by the authority to which the offender is subject; a penalty imposed in the enforceli ment or application of law.
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Punjnud
the name given to the stream which pours into the Indus, about 70 miles above the Sind frontier, the combined waters of the five rivers, the Sutlej, the Beas, the Ravi, the Chenab, and the Jhelum.
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Puno
capital of department of Puno, Peru, on shore of Lake Titicaca. Center of trade with Bolivia, and connected by rail with Arequipa. Little agriculture in department, but industries include gold and silver mining and stock breeding. Town has churches, college, and hospital. Pop. about 10,000.
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Punt
a large, square-built, flatbottomed vessel, without masts, used as a lighter for conveying goods, etc., and propelled by poles. Also, a small, flatboat, with square ends, used in fishing, and propelled by poles. bottomed
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Punta Arenas
the name of several cities and towns: (1) The chief port of Costa Rica on the Pacific. The principal export is coffee, and after that india-rubber, hides, dye-woods, and tortoise-shell. Pop. (1916), about 20,000; (2) A town in Patagonia.
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Pupa
or PUPE, in entomology, the third stage in the development of an insect between the larva and the adult.
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Pupin
MICHAEL IDVORSKY, an American scientist; born in Idvar, Hungary, Oct. 4, 1858; was graduated at Columbia University in 1883; studied at the University of Berlin; and was appointed Adjunct Professor of Mechanics at Columbia University in 1889. In 1901 he announced the discovery of a new method of ocean telephony. He was a member of the American Mathematical Society, American Philosophical Society, etc. He wrote "Propagation of Long Electrical Waves"; "Wave Propagation Sea Voyages and Land Travels by Eng- Over Non-Uniform Conductors." Director Phenix Research Laboratories (1911). During the World War he placed his wireless inventions at the service of the U. S. Government (1917); was Honorary Consul-General of Serbia in New York. Organized a Serbian Relief Association at Columbia University (1915).
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