Guide to the nature treasures of New York city; American museum of natural history, New York aquarium, New York zoölogicl park and Botanical garden, Brooklyn museum, Botanic garden and Children's museum . s on a curved surface. The desk cases down the center of the hall contain thetypes and figured specimens used by James Hall, R. and others in the original description and namingof species. Most of the American specimens are from NewYork State, although there are many from the Middle West-ern States. The type series, as it is designated, is arrangedbiologically under each period, b
Guide to the nature treasures of New York city; American museum of natural history, New York aquarium, New York zoölogicl park and Botanical garden, Brooklyn museum, Botanic garden and Children's museum . s on a curved surface. The desk cases down the center of the hall contain thetypes and figured specimens used by James Hall, R. and others in the original description and namingof species. Most of the American specimens are from NewYork State, although there are many from the Middle West-ern States. The type series, as it is designated, is arrangedbiologically under each period, beginning with the oldestfossiliferous period, the Cambrian, at the entrance. Geolo-gists regard this series, with its 10,000 specimens, as thelargest and most valuable collection of fossil invertebratetypes in America. Toward the far end is a beautiful col-lection of fossil sponges from northwestern Germany. The specimens in the upright cases, at the east or right-hand side, are being arranged to illustrate the developmentand relationship of the more common species of plants andanimals of past geologic times. In the first case are strik-ing examples of carbonization and silicification of woody 113. VOLCANIC BREAD-CRUST BOMB CRINOIDSEA-URCHIN 114 THE AMERICAN MUSEUM OF NATURAL HISTORY fiber, ranging from Devonian to Recent in age. A largestump, with part of the roots, of a carboniferous tree froman anthracite coal mine under Scranton, Pennsylvania, isin the first alcove. Near-by are many typical fossil leavesarranged systematically. In the remaining upright cases is a select series of fossilspecimens illustrating the species of the various biologicgroups of the animal kingdom. These specimens are alsoarranged systematically. The specimens on the left or west side of the hall arebeing arranged to illustrate the order of superposition (oneplaced above the other) of the various beds of sedimentaryrock in the earths crust as well as the provincial distribu-tion o
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectamericanmuseumofnatu
