HOPKINSON. 204 HOP-LOUSE. serves for the dynamo the enme purpose ns the indientivc dia<;ruiii m the case of the stenm-en- giiie. lie was the author of: U;/namic Elcctricitii (1884): Orifiinal I'aprrs in Djiiiamo Marhinenj and Allied Subjects ( 18!t:{) ; and many papers on various eleetrieal and engineering' sulijeels. He met his deatli with his ehihlren in an accident while mountain-clinihing in the Alps. pal council of which the executive is a member. I'npulation. in 18!i0. .WSS; in 1900, 7280. HOP LOPHO'NETJS (XeoLat., from Gk. ilirXa, liiiiilii. arms -4- ((,6nos, plKjnios. murder- ous). A Miocene fossil cat. found in the White River fornuition of Colorado. Wyominf;, and the Dakotas. Sec SAltKE-TooTllKl) TlllEB. HOP-LOUSE. A very destructive aphid or plant-louse {J^horodon humuli). found conunonly TWIO WITH WINTER EQGS: NATrilAL SIZE. HOP-LOITBE. I'AHTHKNOOENETIC I EMALR; SECOND QENEItATION. HOPKINSON, Joseph (1770-1842). An Amcriiaii jurist, horn in Philadelphia. Pa. He graduated at the I'nivcrsity of Pennsylvania in 178ti, and in 1701 be<;an the practice of hiw at Easton, Pa., but soon removed to Philadelphia, where he rose to the front rank in his profession. He was the leading counsel in the famous .suit of Kush vs. Cobbett in 1799, and defended .Tudge Chase in his impeachment before the Senate in. 1800. From 1815 to 1819 he served as a Feder- alist Representative in Congress, where he dis- tinguished himself in the del)ates on the tarifT and the Seminole War. and strongly opposed the recliartering of the I'nited States Bank. In 1828 he was appointed by President Adams a district judge, an oHlee which lie held until his death. For several years he was president of the Phila(lel- phia Academy of Fine Arts and Vice-President of the .mcrican Philosophical Society, to each of which he contributed many papers of interest. In 1837 he was a mcniber of the Pennsylvania Constitutional Convention, and served as chair- man of his .Judiciary Committee. His legal essays and decisions were long accepted as authorita- tive; but he will be longest remembered for his national song, "Hail Columbia," written in 1798, which attained immediate popularity and did much to fortify wavering patriotism. HOP'KINSVILLE. A city and the county- seat of Cliii-tiaii Cciiinty. Ky., 75 miles northwest of Nashville, Tenn. ; on the Louisville and Xash- villc and the Illinois Central railroads (Map: Kentucky. D 4). It is the seat of the South Ken- tucky College (Christian), established in 1849, Bethel Female College (Baptist) .founded in 1854, and of the Western Kentucky Lunatic .Asylum. The city is principally engaged in tobacco manu- facture and trade, but has a considerable business also in flour, wheat, corn, hay, and live stock. Hopkinsville was settled in 1797 and incorporated in 1798. As provided by a charter of 1893, re- vised in 1896, the government is administered by a mayor, elected every four years, and a munici- WIXOED MUillANT, THIRD OENEBATIOK. on the hop-plant, and called in England 'hop-fly.' In certain years this insect causes an almost total loss of the ho)) crop in parts of England and HOP-LEAF, WITD LICE; NATURAL SIZE. New York, and a number of years ago forced the abandonment nf this industry in Wisconsin. .About 1890 it made its first appearance in the States of ForBTH generation; first on TOE hop. Oregon and Washington, and has since done great damage. The winter eggs are laid on plum-trees
