THE MINING AND QUARRY INDUSTRY 1906 57 



The output of slate in New York State last year amounted in value 

 to $61,921, consisting- of roofing slate $57,771 and mill stock $4150. 

 The number of squares of roofing slate made was 16,248. In 1905 

 the output was valued at $95,009 and comprised 16,460 squares of 

 roofing slate valued at $94,009 and $1000 mill stock. The average 

 value of roofing slate for the year was $3.56 a square, against $5.71 

 a square in 1905. The smaller value last year was due to the rela- 

 tively light production of red slate, as compared with the cheaper 

 grades. 



STONE 



The quarry products of New York State rank next in importance 

 to clay manufactures. All of the principal varieties of building and 

 ornamental stones are quarried and most of them on an extensive 

 scale. The production, however, falls short of meeting the require- 

 ments for many kinds of stone. Large quantities of granite, marble 

 and limestone are brought in from adjoining states or are imported 

 from foreign countries. With the enormous undeveloped resources, 

 there is abundant opportunity for development of the quarry indus- 

 tries to a scale more nearly commensurate with the market demands. 



The statistics and notes incorporated in the following pages relate 

 to the different quarry industries of the State, except those of slate, 

 marl and millstones. Information regarding the slate and millstone 

 industries will be found under their own titles, elsewhere in this 

 report. 



Production of stone 



The value of the quarry materials produced in 1906 amounted 

 in the aggregate to $6,504,165. The total for the preceding year 

 was $6,107,147, showing a gain of $397,018. The value of the lime- 

 stone quarried was $2,963,829, against $2,411,456 in 1905. The 

 sandstone was valued at $1,976,829, the greater part contributed by 

 the companies engaged in the bluestone trade. In 1905 the sand- 

 stone amounted to a value of $2,043,960. The output of trap from 

 the Hudson river Palisades, and Richmond and Saratoga counties 

 was valued at $847,403, against $623,219 in the preceding year. 

 Marble accounted for a value of $460,915, considerably less than 

 the total reported for 1905 v/hich was $774,557. There was little 

 change in the granite industry, the value of the output amounting 

 to $255,189 against $253,955 in 1905. 



Classified as to uses, crushed stone was the largest item in the 

 total, with an aggregate value of $2,435,493, an increase of more 

 than $500,000 over the amount returned for 1905. The use of 



