Part I. Introductory 



CHAPTER I 



STATISTICS OF THE STONE INDUSTRY IN THE UNITED STATES 



The following statistics on the stone industry in the United 

 States were taken from the report of the United States Geological 

 Survey, Department of Mineral Resources, for the year 1912. 

 The total value of the stone produced in the United States for 

 the years since 1899 is as follows: 



Year 



Limestone 



Total 



1900 



$13 , 556 , 523 



$36,970,777 



1901 



18 , 202 , 843 



47,284,183 



1902 



20,895,385 



54 , 798 , 682 



1903 



22,372,109 



57,433,141 



1904 



22,178,964 



58,765,715 



1905 



26,025,210 



63 , 798 , 748 



1906 



27,327,142 



66,378,794 



1907 



31,737,631 



71,105,805 



1908 



27,682,002 



65,712,499 



1909 



32,070,401 



71,345,199 



1910 



34 , 603 , 678 



76,520,584 



1911 



33.897,612 



76,966,698 



1912 



36,729,800 



78,284,572 



The value of the total stone products increased $1,317,874 

 between 1911 and 1912, which represents a gain of 1.53 per cent. 

 While this increase was being made in all stone products, lime- 

 stone value was increasing $2,832,188, which represents an in- 

 crease of 8.36 per cent. In fact, limestone and marble products 

 were the only ones to increase in value for the year, marble 

 showing an increase of 3.19 per cent. 



The States which lead in the total value of their stone products 

 for the years 1911 and 1912, were ranked as follows: In 1911 — 

 Pennsylvania, New York, Vermont, Ohio, California, Indiana; 

 in 1912 — Pennsylvania, Vermont, New York, Ohio, Indiana, 

 California. 



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