THE MINING AND QUARRY INDUSTRY I9IO 7 



The value of the quarry materials last year was $6,193,252, also 

 a loss as compared with the record for 1909 when the sum of 

 $7,061,580 was reported. The total was divided according to various 

 uses into: building stone, $780,333; monumental stone, $101,673; 

 curb and flagstone, $484,020; crushed stone, $3,042,136; other uses, 

 $1,785,090. The output of slate, millstones, and limestone used in 

 making hydrau/ic cement is not included in these totals. All kinds 

 of stone were quarried less extensively last year, though the falling 

 off was particularly noticeable in granite and sandstone which are 

 used largely for structural purposes. The production of limestone, 

 marble and trap was but little smaller than in the preceding year. 



Conditions in the hydraulic cement trade were rather unfavorable 

 last year, yet there was a notable gain in production from the 

 local mills. The total quantity of cement manufactured was 

 3,657,015 barrels valued at $3,087,020, against 2,610,383 barrels 

 valued at $2,122,902 in 1909. The gain came from the portland 

 cement plants which contributed a total of 3,364,255 barrels as com- 

 pared with 2,061,019 barrels in the preceding year; the production 

 of natural cement continued to decline, as for a number of years 

 past, and amounted only to 292,760 barrels, or about one-half the 

 quantity reported for 1909. The latter industry, once so important 

 in the State, has thus been reduced to small proportions, but there 

 is every prospect of a continued growth of the portland branch in 

 which some large developments have recently been in progress. 



The production of salt from the mines and wells of the State 

 amounted to 10.270,273 barrels, exceeding that of any previous 

 year. The value of the output was $2,258,292. As compared with 

 the totals reported for 1909 there was a gain of about 4 per cent 

 in quantity, but a slight reduction in the value of the product. The 

 two rock salt mines were very active and served to keep Livingston 

 county, in which they are situated, in the leadinsf place as a salt 

 producer. Onondaga county had the second largest industry, 

 though it contributed very little for actual sale, most of its output 

 being consumed locally for alkali manufacture. 



The mining of gypsum has assumed large proportions of late 

 years due to the increased manufacture of gypsum plasters for 

 building purposes. The output from the mines last year reached a 

 total of 465,591 short tons as compared with 378,232 short tons for 

 1909. The value of the different gypsum materials, including wall 

 plaster, plaster of paris. and gypsum sold in unburncd condition, 

 was $1,122,952, against v$907,6oi in the preceding year. The gain 



