Page:Collier's New Encyclopedia v. 02.djvu/225

LEFT BRONX 193 BRONZE WING and but little over the olfactory lobes; neck was of medium length and stout; axis was large and extended transversely, being massive, with odontoid process Stout and conical; lumbars were slender and not as large as the dorsals, and there were four sacral vertebrae; a long and slender tail, indicated by the caudals; limbs somewhat shorter than the ele- phant's; radius separated from the ulna; carpal bones short and supporting four toes; tibia separated from the fibula; three toes of almost equal size on the hind foot; the bones all solid. Thei brontotherium was about the size of the elephant. The nose was evidently flex- ible, but there was no true proboscis. Eastern world was brought from Corn- wall or from the peninsula of Malacca. The word is also applied to a style of calico printing peculiar rather from the character of its colors than from any specific novelty in treatment. BRONZE AGE, the age of bronze, the second of three ages believed by MM. Nilsson, Steenstrup, Forchhammer, Thomsen, Worsaae and other Danish archaeologists to have followed each other in the peninsula of Jutland and else- where in the following order: (1) The stone age, (2) the bronze age, and (3) the iron age. During the first, stone, or sometimes bone, was used for weapons BRONTOTHERIUM BRONX, THE, a borough of Greater New York, lying N. and E. of the borough of Manhattan, between the Hud- son river. East river, and Long Island Sound, including City, Riker's, Hunter's, Twin, Hart, High and several adja- cent islands; area, 25,270 acres; pop. (1920) 732,016. The Bronx contains an extensive public park, with a botanical garden of 250 acres, and is the site of the New York Zoological Gardens. See New York. BRONZE, an alloy composed of copper and tin, sometimes with a little zinc and lead. It is harder and more fusible than copper itself. The proportions of the two constituents vary according to the purpose for which the alloy is produced. It oxidizes very slowly, even when the air is moist, which renders it well adapted for statues and similar works of art. Bronze was in use in ancient China, Egypt, Assyria, Europe and Mexico. The tin used in parts of the or implements, the working of metal being as yet unknown. Then weapons were made of bronze, the method of al- loying the two metals having been dis- covered, but that of working in iron be- ing undiscovered. Finally iron took the place of bronze. These views have been generally adopted by geologists and archaeologists, though some believe an age of copper to have intervened between those of stone and bronze. Lake dwell- ings of the bronze period have been found in western and central Switzer- land, and one has been discovered in the Lake of Constance. Geologically, even the stone age belongs only to the re- cent period. BRONZED SKIN, a peculiar discolor- ation of the skin frequently associated with Addison's disease, which is a dis- ease of the supra-renal capsules. BRONZE WING and BRONZE PI- GEON, names given in the Australia*