Pipe Fish
a popular name for any individual of the family Syngnathida. Siphonostomata typhle is the broadnosed pipefish; Nerophis æquoreus, the ocean pipefish; N. lumbriciformis, abriciformis, the worm, or little pipefish; and N. ophidion, the straight-nosed pipefish.
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Pipe Lines
. See Petroleum
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Pipe-moulding
See CAST-IRON PIPES. Piston-blowers are machines which force the blast with every alternate motion of the piston. See BLOWER. Pit is a general foundry term for all holes dug in the floor in which to form moulds in green-sand, or close together and cast such as are formed in dry sand or loam. In the former instance the hole is dug, the pattern inserted, and the sand rammed therein, as described at "Bedding In" (q.v.), while in the latter it may be required only to lower the mould down to a suitable depth for casting (see DRY-SAND MOULDING); or, as in the case of a loam-mould, it may be necessary both for closing, and binding the walls sufficient to resist the pressure of the molten iron within by ramming sand firmly in the space betwixt the pit-sides and the mould. See LOAM-MOULDING; CURB; RAMMING. Pitch is the black residue remaining after distilling wood-tar. Charcoal is made by covering piles of wood to partially exclude the air; this is fired, and the volatile constituents of the wood gradually distil off, leaving the charcoal. If it is desired to produce tar, the resinous woods are employed, and the pit-bottom is made concave. During combustion, the liquid products are separated, collect at the bottom, and flow out through a trough into a reservoir. They consist of tar, acetic acid, and oil of turpentine. When the tar is distilled, essence of turpentine is separated, and what remains is pitch. See TAR.
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Piping Crow
the Gymnorhina tibicen, a bird from New South Wales. It has great powers of mimicry; called also the flute player. Also the Gymnorhinnæ, a sub-family of Corvidæ, with five genera.
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Pippin
a name given to several vaof rieties apples. Normandy pippins are apples dried in the sun and stored for winter use .
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Piqua
a city of Ohio in Miami co., about 70 miles N. W. of Columbus. It is on the Miami river, the Miami and Erie canal, the Cincinnati, Hamilton, and Dayton, the Pittsburgh, Cincinnati, Chicago, and St. Louis, and the Western Ohio railroads. Among its important edifices and Ball Memorial Hospital. The city are a library, Federal Building, has important industries including sheet steel works, iron works, stove works, woolen mills, etc. Pop. (1910) 13,388; (1920) 15,044.
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Pirai
or PIRAYA, the Serrasalmo Piraya, a voracious fresh-water fish of tropical America. It is three or four feet in length, and its jaws are armed with sharp lancet-shaped teeth, from which cattle when fording rivers sometimes suffer terribly.
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Pirano
a city of Austria, situated on the Bay of Largone. It is in the former Crownland of Istria. There is a castle, dockyards, and the city before the World War had some commercial importance. Wine, oil, soap and chemical products were manufactured. The salt works are among the most important in Austria.
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Pirmasens
a town of the Bavarian Palatinate, and formerly the chief town , 34 of the county of Hanau-Lichtenberg miles W. of Landau; chief manufactures, shoes and musical instruments. Close by, the Prussians under the Duke of Brunswick defeated the French commanded by Moreau on Sept. 14, 1793. Pop. about 40,000.
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Pirna
a town of Saxony; on the left bank of the Elbe, 11 miles S. E. of Dresden. It contains a fine 16th century tic tic asylum asylu since 1811, and manufactures of glass, chemicals, tobacco, stoves, etc. Eight thousand men are employed in the sandstone quarries. Pop. about 20,-
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Pirot
a town of Servia, situated on the railroad from Belgrade to Sofia, near frontier. Near the bethe Bulgarian ginning of the World War the town was captured by an Austro-Germanic force. Pop. about 10,000.
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Pirrie
WILLIAM JAMES, BARON, an Irish shipbuilder. He was born in Quebec in 1847, and studied there and at Glasgow, becoming draftsman with Harland and Wolff at Belfast, of which he became head. Some of the b the biggest ships in the world have been turned out there, among them the White Star liners "Oceanic," "Olympic," "Titanic." He was Lord Mayor of Belfast in 1896. He is a strong supporter of Irish self-government in a st stronghold of its opponents. In 1906 he was made baron and in 1910 a member of the Order of St. Patrick. During the World War he turned his yard over for the construction of warships.
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Pisa
UNIVERSITY OF, an ancient university located at Pisa, Italy. Founded in 1338 by students and professors from the University of Bologna. When Pisa lost its independence in 1406 the university closed its doors, but was reestablished by the famous Lorenzo de' Medici a few years later. In 1544 the first botanical institute in Europe was Europe founded here. The University suffered in prestige during the two succeeding centuries and not until Grand Duke Leopold of Tuscany in 1808 endowed it handsomely did it recover. During the reaction in 1849-1850 in Italy it was forced to close down some of its departments, but since that time it has been reckoned among the greatest of Italian universities. Its library is worldfamous, having 202,976 volumes, 97,302 pamphlets and 1,814 manuscripts.
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Pisa (COUNCIL OF a church council)
COUNCIL OF, a church council generally included in those called ecumenical, met and opened in Pisa March 25, 1409, and the 23d and last session of which was held Aug. 7 following. Its aim was to end the schism which had divided the Western Church for 30 years; and with this view the leading cardinals, finding that neither of the rival Popes, Gregory XII. and Benedict XIII., would keep their promises to abdicate, had set aside the claims of both, and themselves convoked a general council. It was attended from first to last by 24 cardinals, 4 patriarchs, 80 bishops, 102 proctors of bishops, 87 abbots, 200 delegates of abbots, besides many generals als of orders, doctors, deputies of universities, and am- 171 THE BAPTISTERY, PISA to appear in obedience to its summons, the council formally tried the claims of both in turn, and deposed them as schismatics and heretics. The cardinals then formed themselves into conclave and elected Cardinal Philargi, who assumed the name of Alexander V. But the council, instead of getting rid of the contending Popes, had only added a third, and the faithful continued to be distracted in their allegiance for eight years longer, down to the time of the Council of Constance.
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