Arizona republican., 1915-01-24

every way and to obtain the very best results. With this point in view the congress should not only have the support of every individual
 in mining, but those in every other calling as well. For mining made
 Arizona and it's the medium that still and will support it's present fu- ture welfare and success.
 Largest High Grade Gypsum Deposit in
 the United States
 Six miles from Winkelman, Pinal county, Arizona lies. what is prom
 ounced by tho United States geological 1 survey, the largest and most extensive deposit of high grade gypsum in the United States.
 Development work on this property is progressing and arrangements will soon be made for the installation of large plant for the manufacture of products of which gypsum is used.
 l well known chemist of Los Angeles made a thorough examination of this |, property and in his report states that there is millions of tons of gypsum in
 
 in thickness from to 30 feet that will | average 99 per cent pure.
 1. The uses of gypsum are varied. It 1 has been known as a mineral for many ages, but it is but a comparatively short
 period since it has been recognized as 1 having a commercial value aside from the manufacture of plaster of Paris. by | which name we know the refined art icle. plaster of Paris is used principally in modelling in the arts. plaster orna-
 ments tor interior and exterior decora- | tions. moulds for the manufacture of porcelains. used extensively in the glass industry, used as filler in pa per manufacture, used in the manu- 1 facture of paint exclusively, and wide
 ly used on building. materials. chief
 among which js calcined or hard plas ter and which at this period is the
 principal use of gypsum in building
 material on the Pacific coast. however ! in the east it is extensively used for the manufacture of all kinds of stucco. floor and wall tiles, studding, fireproof wall material, roofing. tiles, hollow l building blocks and inside finish ma
 terial
 The American Gypsum company are manufao turing materials in Chicago from gypsum for the construction of buildings. with the exceptions of the foundation and the steel. from tho 1 ndation to and including the roof
 are strongly recommended by the in-
 suranee companies by reason of their
 absolute fireproof qualities and such buildings are very attractive by reason
 of the sound proof qualities. Gypsum
 in addition to being both fire and heat resisting is a non conductor of sound. The reason, and the only reason why | these materials have not been more extensively used on the Pacific coast. is from the fact that they have not been | manufactured on the coast and the l freight rates from the east are prohib-
 itive. The manufacture of these vari
 ous materials are now being taken up
 on the Pacific coast and the use of gyp-
 sum iE these products will be greatly
 increased within the coming few years.
 The most important use of gypsum,
 for fertilizer So-called land plaster os
 for pertilizer. So-called land plaster or
 gypsum has been used used for fertiliZ- . CT for years in the east with great sue cess, and this is especially so in the states of New Jersey. New York. Penn sylvania and Ohio, but for some un- known reason it has not been resorted to as fertilizer generally in the west The United States government through it's agricultural department have made many experiments with gypsum as 6 fertilizer in it's reports. The use of gyp- sum as fertilizer neutralizes and ab- sorbs the various salts in the ground imparts sulphuric acid in the soil ant retains the moisture to very large extent. Five years ago there was com paratively no land plaster or gypsum used in Southern California. Three years ago considerable of it was uset and last year there was q great quan- tity used We are informed by tho Orange Growers Association and th' Fertilizer Association, that the use O ! 1 gypsum will be doubled this year ovel what it was last year. and that it vii ! continue to increase very rapidly. pro- ] viding they can secure gypsum of suf \ lIcltut EuIllI dl d tOSt tudt 10 hOt pi o { hibitivc for that purpose.
 > There are three things essential t' l commercial gypsum. First the purity { of the gy ypsum. Second the cost of pro ] duction and third the cost of transpor ! taton This deposit can be worked b, steam shovels and transported to rail road over six miles of solid level roat ! at very small cost The cost of trans portation to points in California an' { Arizona will vary of course accordin. ] to distance.
 ] There is a great amount of caicinet or hard plaster used in buildings in tn ! state of Arizona and it is hard to es ] innate the number of acres of land il ! Arizona that would be benefited by tn { use of gypsum as a fertilizer. Ther ] are over 250.000 acres of land in tn Salt River valley that will all event ually be in cultivation. A considerabl : acreage of this land contains. black al : kali, but by the use of gypsum to neu