Pile 3735 PiUotv soldered into tin boxes which are filled with pure olive oil. Concarneau in Brittany is the chief center of this industry. Pile Dwellings. The custom of living in houses built upon a platform supported by wooden piles is of great antiquity, and ob- viously had its origin in the desire for se- curity against wild beasts. Piles, or Haemorrhoids, are chiefly due to the presence of some obstruction to the portal circulation. Piles and Pile Driving. A load may be supported on soft or treacherous ground by driving down one or a number of long, heavy stakes or round timbers, called piles. Pile Foundation, before depositing con- crete. This makes a pile foundation, a device of great antiquity (see PILE DWELLINGS). Piles are used in the same way to-day, in very great extent, affording the cheapest method of securing a foundation where the soil will not carry the load directly, or where it is not convenient to spread the foundation suffi- ciently. Timber piles are most used, but in recent times iron, concrete, and reinforced concrete have found application. In one method, the concrete is rammed into the hole by heavy drop hammers, tending to force the concrete out into the soil and thus form an enlarged bottom section. The Raymond pile is formed within a thin steel shell left in the hole after withdrawing the driving core. The Simplex method employs a strong tubular driving pile, through which the concrete is later rammed down, the steel pile being grad- ually pulled up. The steam-hammer pile- driver is much used. This has what is in effect a verticle steam-engine sliding in the leads and set on the pile head. Its heavy pis- ton strikes the pile a rapid succession of short blows, which are more effective and less destructive to the pile-head than the heavier impacts of an ordinar}- driver hammer. Jet- ting piles down is done by means of a water pipe fastened along the side of the pile or passing through the center (in concrete piles), a stream of water under heavy pres- sure being forced through the pipe so as to scour away the earth from in front of the pile point. Pilgrim, one who makes a special journey (thence called a 'pilgrimage') for the purpose of visiting a shrine or other hallowed spot. Pilgrimages are common (o most religions, and many places are credited with special sanctity. Thus, the mosque of the sacred city of Mecca attracts devout Moslems from all parts of Islam. Pilgrim Fathers. In American history, the name applied primarily to the 41 male pas- sengers (exclusive of servants) on the May- flower who landed at Plymouth, Mass., iť 1620, on Dec. n. The title is sometimes in- accurately ipplied to all the early settlers of Massachusetts who held similar religious views. Pilgrim Fathers, United Order of the. A fraternal organization established in 1879 for the purpose of furnishing insurance. Pillar, the pier on which the arches rest in decorative architecture, although the Latin mediaeval writers employed the word colum- na. Sir Christopher Wren constantly uses 'pillar' in describing both Roman and Gothic buildings. Pillau, or Pillay, a Turkish dish of rice with fowl or mutton, raisins, almonds, chil- lies, and cardamons boiled or stewed to- gether, and served up with sweet gravy and fried onions. Pilling, James Constantine (1846-95), American ethnologist, born in Washington, D. C. In 1891 he took charge of the ethno- logical work at the Smithsonian Institution. He published, among other v/orks, Languages of the North American Indians (1885); Es- kimo Language (1887); and Mexican Lan- guage (1895). Pillory. This was a frame erected in a pub- lic place, with holes for the head nnd arms, in which malefactors were exposed to the public. The pillory was abolished by act of Congress in 1839. Pillow, Fort. A fortification in Tennessee, 40 m. n. of Memphis at the junction of Cool creek and the Mississippi river. It was con- structed by the Confederates under direction of Gen Gideon J. Pillow in 1861-62, butj