THE MINING AND QUARRY INDUSTRY I9I4 



17 



CLAY 



BY ROBERT W. JONES 



Due to the decrease in building construction during the year 

 1914 the production of clay products, along with other building 

 materials, fell off considerably from that of the preceding season. 

 In four of the principal cities of the State that depend largely 

 upon local materials for building purposes, the falling off in con- 

 struction during 1914 as compared with 1913 amounted tON an 

 average of 22.1 per cent. In New York City alone, building con- 

 struction fell off 16.8 per cent. 



The following table gives the production of clay materials in the 

 State during the last three years : 



Production of clay materials 



MATERIAL 



1912 



1913 



1914 



Common brick 



Front brick 



Vitrified paving brick 



Hollow brick 



Fireproofing 



Terra cotta 



Fire brick and stove lining 



Drain tile 



Sewer pipe 



Pottery. 



Miscellaneous 



Total 



666 945 

 109 657 

 382 984 



42 575 

 230 833 

 139 291 

 380 005 

 122 571 



77 644 

 876 762 



13 828 



$5 938 922 



99 736 

 576 970 



44 265 



276 053 



1 113 322 



371 408 



134 199 



154 646 



3 367 187 



1 164 



597 856 

 105 439 

 680 226 



38 119 

 245 034 

 892 630 



331 671 

 92 938 

 81 000 



405 676 

 4 630 



$12 043 095 



ii2 077 872 



$9 475 219 



One hundred ninety companies or individuals were active during 

 the year as compared with 204 during the season of 191 3. One 

 hundred thirty-three reported a production of common soft-mud 

 building and 13 a production of wire-cut building brick, or all to- 

 gether 145 as compared with 159 for the preceding year. The 

 aggregate number of common building brick manufactured during 

 the season amounted to 932,759,000 as compared with 1,090,506,000 

 for 1913; their value was $4,597,856 against $5,938,922 for 1913. 

 Of the number of common building brick produced, 55,071,000 

 were made by the stiff-mud, wire-cut process with a value of $365,- 

 159 as compared with a value of $424,894 during 191 3. All clay 

 products, with the exception of vitrified paving brick, fell off in 

 value. Paving brick made an increase of 15. 1 per cent in value and 

 23 per cent in quantity over 191 3. 



