THE MINING AND QUARRY INDUSTRY IQI2 15 



total up to a new record. It was mostly contributed by the brick 

 manufacturers in the Hudson valley, who sell in the New York 

 market. The average prices in that important center were con- 

 siderably above those reported for 19 10 and 191 1. 



Among the other branches of the clay-working industry, those 

 of pottery and terra cotta also showed good increases, the produc- 

 tion of pottery being much the largest ever reputed. The remain- 

 ing products, inclusive of paving brick, fire brick, drain tile, sewer 

 pipe and fireproofing were manufactured on a reduced scale. 



The actual value of the production of clay materials of all kinds 

 in 1912 was $11,947,497 as compared with a value of $9,751,659 

 in 191 1 and $11,518,982 in 1910. The gain for the year was 

 $2,195,838 or about 23 per cent. The largest value recorded for 

 any year was in 1906 when it amounted to about $14,000,000. 



Production of clay materials 



MATERIAL 



I9IO 



I9II 



1912 



Common brick 



Front brick 



Vitrified paving brick 



Fire brick and stove lining 



Drain tile 



Sewer pipe 



Terra cotta 



Fireproofing 



Building tile 



Miscellaneous 



Pottery 



Total 



$6 563 212 

 119 859 



333 5ii 

 464 693 



254 679 

 137 731 



1 062 017 

 256 820 



65 190 

 134 752 



2 136 518 



$5 3io 511 

 132 792 



307 529 

 413 500 

 202 292 



138 258 



$11 51 1 



$9 75i 659 



$6 646 436 



243 504 

 174 048 

 380 005 

 122 571 

 77 644 



718 700 



I 139 29I 



229 627 



230 833 



82 217 



42 575 



20 179 



13 828 



196 O54 



2 876 762 



$n 947 497 



The product of common building brick had a value of $6,646,436 

 as compared with $5,310,511 in 191 1, representing an increase of 

 $1,335,925. Front brick also showed an increase, with a total 

 value of $243,504, against $132,792. Vitrified paving brick ac- 

 counted for a value of $174,048, as against $307,529, the large 

 decrease being due to a suspension of operations by one of the 

 larger manufacturers. Fire brick and stove lining were valued at 

 $380,005, as compared with $413,500 in the preceding year. The 

 output of drain tile fell ofT very considerably, with a total of 

 $122,571, against $202,292 in 191 1. Similarly, that of sewer pipe 



