The first exposition of conservation and its builders; an official history of the National conservation exposition, held at Knoxville, Tenn., in 1913 and of its forerunners, the Appalachian (14776154201)

Identifier: firstexpositiono00good (find matches)
Title: The first exposition of conservation and its builders; an official history of the National conservation exposition, held at Knoxville, Tenn., in 1913 and of its forerunners, the Appalachian expositions of 1910-11, embracing a review of the conservation movement in the United States from its inception to the present time
Year: 1914 (1910s)
Authors: Goodman, William M Pinchot, Gifford, 1865-1946 Ellis, Don Carlos Lathrop, Julia Clifford, 1858-1932
Subjects: Knoxville, Tenn. National Conservation Exposition (1913) Knoxville, Tenn. Appalachian Exposition (1910) Knoxville, Tenn. Appalachian Exposition (1911) Natural resources
Publisher: Knoxville, Tenn. (Press of Knoxville lithographing co.)
Contributing Library: West Virginia University Libraries
Digitizing Sponsor: Lyrasis Members and Sloan Foundation



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one-half goes into the dum)). From the land pebble region a saiuple of phosphate mud deposited on theedge of the waste pond gave the following analysis: Analysis by P. jumeau. Calcium Phosphate 45.f) Silica 27.10 Iron Alumina 2.48 From tests made in one of the land pebble mines Mr. 1. Jumeau concludesthat about five per cent of the material going U^ the waste pond can be recoveredby using a twenty mesh screen, and that the material thus saved will analyze 74.4to 75.5 per cent calcium phosphate, lly using fortv mesh screen 20 to 35 per centof the material is obtained containing from 51 to (>1 ))er cent calcium jjliosphate. The amount of phosi)hatc now being ))roduced in Morida approximates twoand a half luillion tons annually, and it is probable that fully as much more is dis-carded in the process of mining. It is true that a large ))art of the i)hosphate thusdiscarded is too high in alumina to be used in mamifacturing fertilizer under exist- 182 THU FIRST EXPOSITIOX OF CONSERVATION
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DRIVEWAY IN FRONT OF MAIN BUILDING. ing conditions. 11 is, however, none the less desiral)le that methods l)e devised liywhich the ))liosi)horic acid can l)e saved. The lines of investigation that seem to beopen include mechanical devices with which to recover the very fine pebble phos-phate, and the search for a sufticiently cheap solvent, to make it practicable todissolve out the calcium phosphate from the phosphatic clays and tO reprecipitateit in a purer condition. PARTIAL INVENTORY OF THE MINERAL RE-SOURCES OF GEORGIA r.Y S. W. McCalue.* Georgia, often designated the Empire State of the South, coiii))rises an areaof nearly sixty thousand sf;iiare miles. It is the largest state east of the Missis-sippi, heing nearly e(;ual in area to the six new England states, namely: Maine.Xew Hampshire, Aermont, Massachusetts, Rhode Island, and Connecticnt. It ismore than one-fourth the size of Germany, one third that of the entire empire ofjapan, and larger than hngland and \\alcs comhined. Er