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Show SAND-LIME BRICK. Rapid Growth of a Now Bulldlmj Material Ma-terial Induotry. The sand-llnie brick Industry was in a prosperous condition during the year 1910, according to statistics compiled com-piled by Jefferson MIddleton, of the United States Geological Survey. These statistics also show a repld development de-velopment of the Industry In recent years. The value of-tho production In 1910 was $1,1G9.153. against $1,150.5S0 In 1909 nnd only $155,040 In 190S. Michigan led in 1910 as for several years, and reported- products valued at $210.G49; this was a gain of $22 423. or 10.2S per cent. Over 1909 Michigan's Michi-gan's outnut constituted about one-fifth of tho total value of all sand-llmo products pro-ducts In 1910 Minnesota, tho second In rank, producing $54,250 worth, was the state to show tho largest Increase over 1909?41,lSl, or 36.42 per cent Now York was thlrdlin output, Florida fourth, and Pennsylvania, fifth. Of tho statea for wh1h totals aro compiled com-piled by Mr. Middleton, Indiana showed show-ed tho largest proportional gain, 93. 0 per cent. Of the3o states only two showed a decreaso in value of thepro-duct. thepro-duct. Iowa 516,941 or 35.14 per cent; and New York. $1,252 or 1 39 per cent. Efficiency of Sand-Llmo Brlcko. The process of making sand-lime brick was Invented In Germany whero It probably haa.hnd Ub greatest development. de-velopment. Observations mado thero seem to prove that sand-lime brick Is a building material which will resist shining soot. Three vears ago an Inn was built In Grei&nhngon, in which sand-llmo brick was used for everything every-thing but tho Uninr of the chimnoy flues, which were built of common brick because at that time the question ques-tion whether sand llmo brie kwas equally resistant to fire had not been settled In Bplto of tho fact that lignite lig-nite briquets were burned, shining soot was found In the flues In a short time, and the flue bricks were permeated aB high as the raftorB of the ground floor. When tho flues were pulled down It was found, however, that tho sand-lime sand-lime brick wore onllroly unharmed and white in color. In splto of the fact that the brick walls were only about 4 1-2 Inches thick. If this experience Is repeated elsewhere. It Ib stated, the fact will be established that sand-lime sand-lime brick is the beat building material mater-ial to withstand shinlne soot. A copy of Mr, Mlddloton's report may ho obtained on application to tho director of the geological survoy, Washington, D. C. |