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 angles produced and angular, whereas in Scutigerella they are rounded. Both genera are widely distributed and are represented, in Europe, South America, Siam, &c. Large specimens reach a limit of between six and seven millimetres. They live in earth, beneath stones, dead leaves or fallen branches, and resemble diminutive centipedes (Scolopendra or Lithobius) both in appearance and movements. The Symphyla have frequently been compared with the Thysanurous Hexapods, the parapods with their adjacent exsertile vesicles in Scolopendrella being very similar to the abdominal appendages and vesicles of such an insect as Machilis; while the posterior spinning sclerites or cerci of the former bear much resemblance to the cercopods of Japyx. It must be remembered, however, that the spinning glands of certain Diplopods occupy the same position as those of the Symphyla and open upon papilliform processes of the last tergal plate, which are certainly not appendages. Hence, if the papillae are the homologues of the cerci in Scolopendrella, these cerci cannot be morphologically comparable to the cercopods of Japyx or other insects. But even if the full force of the arguments in favour of relationship between the Symphyla and the Hexapoda be admitted, the Symphyla, nevertheless, differ essentially from the Hexapoda in the anterior position of the generative orifice, and in the presence of twelve pairs of similar ambulatory limbs.

 MILLOM, a market town in the Egremont parliamentary division of Cumberland, England, in the extreme south-west of the county, on the Furness railway. Pop. of urban district (1901), 10,426. The church of Holy Trinity, Early Norman and Decorated in date, is chiefly of interest for its curious pillars, alternately round and octagonal, and for a window in the north aisle, which has five lights, and is known, on account of its unique shape, as the “fish-window.” A massive roodstone stands in the churchyard. Millom Castle, dating from shortly after the Conquest, was fortified in the 14th century by Sir John Huddlestone, whose descendants held it until 1774. For centuries, they exercised the power of life and death; a stone stands where the gallows were formerly erected, and indicates that here they exercised jura regalia. Though strongly built, the castle was never of great size, and it has been largely dismantled. A fine carved staircase, however, still exists in the main chapel. In 1648 the Parliamentary forces besieged Millom Castle, and early in the 19th century its park was converted into farmland. In the neighbourhood of Millom there are blast furnaces and highly productive mines of red haematite ore. The deposit lies partly under the foreshore of the river Duddon, and a company has expended upwards of £120,000 upon a sea-wall and embankment to protect the mine from the sea.

MILLS, JOHN (d. 1736), English actor, was a member of the company at Drury Lane from 1695 almost uninterruptedly to the time of his death, playing and creating hundreds of parts. He was at his best in tragedy. His wife was an actress, and their son William—“the younger Mills”—was also an actor of some merit.

MILLS, ROGER QUARLES (1832–), American legislator, was born in Todd county, Kentucky, on the 30th of March 1832. He went to Texas in 1839, studied law, and was admitted to the bar by a special act of the legislature before he was twenty-one. He entered the Confederate army in 1861, took part as a private in the battle of Wilson’s Creek, and as colonel commanded the Tenth Texas Infantry at Arkansas Post, Chickamauga (where he commanded a brigade during part of the battle), Missionary Ridge and Atlanta. He served in the national House of Representatives as a Democrat from 1873 to 1892 and in the Senate from 1892 to 1899. He made the tariff his special study, and was long recognized as the leading authority in Congress. As chairman of the Ways and Means Committee of the House of Representatives in 1887–1889 during President Cleveland’s first administration, he led the fight for reform. From his committee he reported in April 1888 the “Mills Bill,” which provided for a reduction of the duties on sugar, earthenware, glassware, plate glass, woollen goods and other articles, the substitution of ad valorem for specific duties in many cases, and the placing of lumber (of certain kinds), hemp, wool, flax, borax, tin plates, salt and other articles on the free list. This bill was passed by the Democratic House on the 21st of July, and was then so amended by a Republican Senate as to be unacceptable to the house. The tariff thus became the chief issue in the presidential campaign of 1888. In 1891 Mills was a candidate in the

Democratic caucus for Speaker of the house, but was defeated by Charles F. Crisp (1845–1896) of Georgia. During the free silver controversy he adhered to the Cleveland section of the Democratic party, and failed to be re-elected when his term in the Senate expired in 1899. He then retired to Corsicana, Texas, where he engaged in business and the practice of law.

MILLSTONE GRIT, in geology, a series of massive sandstones, grits and conglomerates with alternate shales, the whole resting directly upon the Carboniferous Limestone or upon intervening shales (Yoredale, Limestone Shales), usually in stratigraphical continuity. Its occasional coal-seams show that conditions of coal-formation had already begun. In Great Britain its outcrop extends from the Bristol Coalfield through South and North Wales to its fullest development in the north-midland counties, Lancashire and Yorkshire, and thence to Scotland, where the Roslin Sandstone of the Lothians and the Moor Rock of Lanark and Stirling are considered its equivalents. Characterized by grits and sandstones of the same general type, though individually variable, as sandbanks formed on the shoaling of the Carboniferous sea, yet often persistent over wide areas, the formation, estimated as 5000 ft. thick in Lancashire, contains typically the following grits in descending order: First, or Rough Rock; second, or Haslingden Flags (Lancashire); third, or Chatsworth Grit (the last two being the Middle Grits of Yorkshire); fourth and fifth, or Kinderscout Grits and the Shale Grits. The first and third, the most persistent, are often coarse and pebbly, like the Kinderscout Grits. In the north of England these grits lose their identity. In South Wales the Millstone Grit, immediately succeeding the Carboniferous Limestone, consists of 450 ft. of grit and shale, its upper member being the massive pebbly Farewell Rock. It extends into the Bristol Coalfield, though not recognized in the Devonshire Culm. In Ireland certain grey grits and flags are assigned to it. In northern France and Belgium it loses its individuality and is merged in the Coal-measures. It reappears east of the Rhine, but is unrecognizable in the somewhat different Carboniferous succession of eastern Europe. In America the Pottsville Conglomerate, 1500 ft. thick in the south Appalachians, with workable coals, and widely unconformable upon the Mississippian, introduces the Pennsylvanian (Upper Carboniferous) system, and approximately represents the Millstone Grit of western Europe, as does the red conglomerate of Nova Scotia.

The shales of the Millstone Grit include thin beds of marine goniatites (Glyphioceras bilingue, Gastrioceras carbonarium), Pterinopecten papyraceus, and Lingula mytiloides, while the grits contain Lepidodendron, Stigmaria and calamites. In Scotland plants and estuarine fishes differ markedly above and below the Roslin Sandstone.

The English Millstone Grit produces a characteristic scenery of wild moorland plateaux, or alternations of shale-valleys and rugged grit-ridges. The grits furnish valuable building-stones, and grindstones. They also afford an excellent water supply.

MILLVILLE, a city of Cumberland county, New Jersey, U.S.A., on the Maurice river, 40 m. S. by E. of Philadelphia. Pop. (1890) 10,002; (1900) 10,583 (598 foreign-born); (1905, state census) 11,884; (1910) 12,451. It is served by the West Jersey & Seashore railway, by electric lines to Philadelphia, Bridgeton, Vineland and Fairton, and by schooners and small freight boats. Peaches and small fruit are cultivated extensively in the surrounding country. In the north part of the city is a large public park, in which a beautiful lake 3 m. long and about 1 m. wide has been formed by damming the river. Glass and moulding sand is found in the vicinity, and the city is engaged principally in the manufacture of glass (especially druggists’ ware). The value of the city’s factory products increased from $2,513,433 in 1900 to $3,719,417 in 1905, or 48%, and of the total value in 1905, $2,332,614, or 62·7%, was the value of the glass products. Millville was incorporated as a town in 1801, was chartered as a city in 1866, and its charter was revised in 1877.