Autogravure
a process of photoengraving, patented by J. R. Sawyer, of London, in 1884. If an ordinary autotype carbon print be placed on silvered copper instead of on paper, the slight relief which the picture possesses is enough to admit of an electrotype being taken from it. The raised parts of the print become the depressed parts in the electrotype. The latter can, therefore, be used for taking impressions from in the same way as an engraved copperplate.
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Autolycus
a son of Mercury, by Chione, a daughter of Dædalion, and one of the Argonauts. His exploits as a thief have been greatly celebrated. AUTOMATIC GUN. See MACHINE GUN.
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Automatic Pistol
an arm adopted by the German Government for use in the army. It is charged with 10 cartridges at a time, may be reloaded with great speed, and is said to possess many advantages over the revolver. The charging is done automatically. The magazine is in the center of the weapon. A feature of the new weapon is a combination, which enables the pistol to be transformed, instantly, into a musket. This is done by using the case as a butt. The bullet of hardened lead weighs five and a half grams. The caliber is 7.03 mm. The initial velocity of the projectile is 425 meters. The sight is graduated to 500 meters, and the extreme range is about 1,000 meters.
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Automatic Regulation
of electrical machines, a type of control or internal regulation ac on accomplished by means of electrical phenomena whereby the speed or other requirement of such machines is kept constantly self-adjusted. Thus a motor by its own inherent laws takes only such a current from the source of supply as is needed at each instant for its varyreligious movement
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Automatism
a word derived from two Greek words signifying self-movement, and usually applied to machinery constructed to represent human or animal actions; automatic, used of an apparatus, implies that it does its work with little or no guidance or interference from man, as in a telegraphic automatic transmitter. The construction of automata has occupied the attention of mankind from very early ages. Archytas of Tarentum is reported, as long ago as 400 b. c., to have made a pigeon that could fly. AUTOMOBILES. See MOTOR VEHICLE
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Automedon
Son of Diores, the charioteer and companion of Achilles , and, after the death of the latter, the companion of his son Pyrrhus . Hence Automedon is used as the name of any skillful charioteer. 2026 Editor's Note: Automedon was Achilles' charioteer, driving the immortal horses Balius and Xanthos. He was from the island of Skyros. (Ed: BR 2026-06-12)
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Autonomy
the arrangement by which the citizens of a state manage their own legislation and government; and this evidently may, with certain restrictions, be the case also within limited bodies of the same people, such as parishes, corporations, religious sects. These districts or communities may be autonomous, if not absolutely, yet within certain defined limits. They may be said to' enjoy a partial, limited, or local autonomy. Autonomy is often used to designate the characteristic of the political condition of ancient Greece, where every city or town community claimed the right of independent sovereign action. Recently the word is more specifically used of territories or provinces, which, while subject in some matter to a higher sovereignty, are autonomous in other respects. The self-government enjoyed by the British colonies may be described as a modified form of autonomy.
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Autoplasty
a mode of surgical treatment which consists in replacing a diseased part by means of healthy tissue from another part of the same body. The most familiar instance is the rhinoplastic or taliacotian operation, for supplying a new nose from the skin of the forehead. It is more popularly known as skingrafting.
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Autopsy
eye-witnessing, a direct observation; generally applied to a post mortem examination, or the dissection of a dead body.
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Autotype
a method of phototyping. Tissue, being prepared with a liquid composed of gelatine, sugar, and bichromate of potash, is then used for taking a collodion negative in the ordinary way. It is next applied under water with the face down to a plate of glass, metal, or other paper, coated with gelatine and chrome alum. Means are then taken to remove the parts not hardened by light, and, finally, by another elaborate process, the plate is made ready for the printingpress.
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Autun
a city of France, in the department of Saône -et-Loire, on the Arroux, 43 miles S. W. of Dijon, on the railroad to Nevers . It is picturesquely situated. The Church of St. Martin, built by Queen Brunehaut, and containing her tomb, furnishes a variety of architectural styles. Autun is one of the most ancient French cities, and was made a Roman colony by Augustus, from whom it derived its old name of Augustodunum. It still presents many fine Roman remains. Talleyrand was Bishop of Autun at the commencement of the French Revolution; another bishop was Abbé Roquette, whom Molière immortalized. Pop. about 16,000 .
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Auvergne
COUNTS AND DAU- PHINS OF, a title which was, about the middle of the 8th century, conferred on Blandin, who served the Duke Waifre in his opposition to Pepin le Bref, founder of the Carlovingian dynasty. The name figures through a great part of early French history.
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Auvergne
a former province of central France, now merged into the departments of Cantal and Puy-de- Dôme, and an arrondissement of Haute- Loire. The Auvergne Mountains , separating the basins of the Allier, Cher, and Creuse from those of the Lot and Dordogne, contain the highest points of central France: Mt. Dore, 6,188 feet; Cantal, 6,093 feet; and Puy-de-Dôme , 4,806 feet.
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Auxerre
the chief town of the French department of Yonne, on the Yonne river, 109 miles S. E. of Paris , in a rich district abounding in vineyards. It presents an imposing aspect from a distance, the most prominent feature being the noble Gothic cathedral, which dates from 1215. Auxerre was a flourishing town before the Roman invasion of Gaul. It was destroyed by the Huns in 451, and in 486 was wrested by Clovis from the Romans. The county of Auxerrois came finally in 1477 to the kingdom of France. The principal manufactures are wine (a light Burgundy), candies, chemicals and hosiery. Pop. about 25,000.
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