Dulled-brass
Important: Safety Warning This page describes trade processes that use dangerously toxic materials such as cyanide solutions, mercury amalgams, or strong acids. These processes require training, equipment, and precautions far beyond what the text describes. This information has been left in for historical purposes but should not be acted upon. The dead appearance, by the French styled "mat," is obtained on brass by observing the following: Immerse in nitric acid 200, sulphuric acid (sp. gr. 1.845) 100, salt 1, sulphate of zinc 2. Very large objects should have a mixture of nitric acid 3, sulphuric acid 1, water 1, sulphate of zinc 1/2. Repeat the dipping and well-rinsing till the desired color is imparted. See DIPPING.
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Dum-Dum Bullets
a bullet so named after the place near Calcutta where it was first made. It is one which instead of having its greatest strength at the point is weakest there, so that in striking a bone it will flatten out and shatter it, and not, like the modern steelcoated, sharp-pointed bullet, make a small hole and pass through without any other effect. The loading of rifles with two bullets, with jagged bullets, or with bullets mixed with glass or lime has long been forbidden in civilized warfare. At Santiago the Spaniards were charged with cutting off the brass tips of their bullets so that they had the same effect in inflicting jagged wounds as the regular dum-dum bullets. Dum-dum bullets are now used to some extent by big game hunters. The Hague Peace Congress agreed that dum-dum bullets should not be used in war. The same charge was brought against the British by the Germans in the World War, but was never proven officially.
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Dumas (ALEXANDRE the Younger a French)
ALEXANDRE, the Younger, a French dramatist and romancist, son of the preceding; born in Paris, July 27 or 28, 1824. He published his first romance: "Story of Four Women and a Parrot" (6 vols. 1847), which found little favor. Among his romances are: "A Woman's Romance"; "Cesarine"; "Camille" (La Dame aux Camélias); all in 1848. His dramas include: "Diana de Lys" (1853), and "The Demi-Monde" (1855). He also wrote the romance, "The Clémenceau Case" (1864), dramatized under the same name; and the dramatic pieces: "The Natural Son" "The Friend of Women" (1858); (1864); "Claude's Wife" (1873); "The Danicheffs" (1876); "Francillon" (1887); and others. He died in Paris, Nov. 28, 1895.
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Dumb-vent
A vent from a hollow core led to some distance by means of an underground flue, where there will be no possibility of sparks igniting the gas and causing an explosion. See VENTING.
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Dumba
KONSTANTIN THEODOR, Austro-Hungarian Ambassador to the United States in 1914, at the outbreak of the World War. The United States was at this time holding a neutral attitude toward the war in Europe. On Aug. 30, 1915, an American correspondent was arrested in Falmouth, England, as he was landing from a trans- Atlantic liner and among his papers, which were seized, was found a message from Dr. Dumba to Baron Burian, the Austro-Hungarian Foreign Minister. In this letter the Austrian Ambassador suggested the blowing up of a number of American munition factories, which were supplying Great Britain and her allies with war supplies. For this purpose, and general propaganda, funds were requested. The United States Government thereupon forced the official recall of Dr. Dumba.
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Dumbarin-Nardar
One of the classes of attendants or companions of the Hindoo daivers, whose special duty it is to play upon a kind of drum. Dupuis, Charles François : 1742-1809. Charles Francois Dupuis was born at Trie le-Chateau, and educated by his father and afterwards at the College d'Harcourt. At the age of twenty-four he was made professor of rhetoric at Lisieux; but his inclination led him into the field of mathematics. In his work, Origine de tous les Cultus he attempts to explain not only all the mysteries of antiquity, but also the origin of all religious beliefs. In his Memoire Egbo explicatif du Zodiaque chronologique et mythologique (1806) Durandal: A magical sword belonging to Roland of legenhe maintains a common origin for the astronomical and religious opinions of the Greeks, Egyptians, Chinese, Duum Vira : (See Sibylline Books .) Persians, and Arabians. dary fame. E
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Dumbartonshire
a county of Scotland, with an area of 267 square so miles. The northern and southern parts are mountainous, with an elevation of from 2,000 to 3,000 feet. Within the county are included many beautiful lakes, including Loch Lomond. The chief industries are dyeing, the printing of calicoes, engine and ship-building, brew- 4 ing and distilling, and the mining of coal and iron. Pop. about 140,000. The capital is Dumbarton.
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Dumfriesshire
a county of Scotland in the southern division. It has an area of 1,072 square miles. It is mountainous in the northern part. There are mines of coal, limestone, lead, silver, and zinc. The chief industries are agriculture and cattle and sheep raising. In the numerous rivers are abundant salmon. Pop., about 75,000. The capital is Dumfries.
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Dummy-block
A brick and loam model around which to form a jacket or other core by means of the spindle and sweep-board, the latter being the means for forming the dummy-block also. When the core has been dried the block is picked out piecemeal, leaving the jacket-core standing; hence the name. See JACKET-CORE.
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Dunajec
BATTLE OF, named after the Dunajec river, one of the most important engagements between the Russians and the forces of the Central Empires fought during the early part of the World War. The object was to drive back the Russians, who had invaded eastern Galicia and the Bukowina, and large forces numbering nearly 2,000,000 were massed in this region and placed under the command of General von Mack- The fighting began on April 28, ensen. 1915, and lasted well into May, the Russian center being broken and the whole Russian front being driven back.
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Dunbar
2026 Editor's Note: This page uses language about race that was commonplace when the book was published and is offensive by today's standards. The text has been left exactly as it was printed, rather than cut or softened, so that the historical record — including how ordinary such language once was — is preserved. (Ed: ET 2026-07-22) PAUL LAURENCE, an American author; born of negro parents in Davton, O.. June 27, 1872. He was graduated at the Dayton High School in 1891, and since then has devoted himself to literature and journalism. Since 1898 he has been on the staff of the Librarian of Congress. He has written "Oak and Ivy" (poems); "Lyrics of Lowly Life" (poems) ems), and "The Uncalled" (a novel). He died Feb. 9, 1906.
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