950 NEW YORK STATE MUSEUM 



last named, beds were found which yielded large blocks resembling 

 the Welsh slate in color and quality and adapted for structural 

 material, billiard tables, blackboards and other purposes. They 

 were operated as late as 1898. 



The slate from. Washington county exhibits a variety of colors. 

 Red is the most valuable and is the characteristic product of 

 the region. Owing to its rarity elsewhere, it has a wide sale and 

 is in constant demand for export. This variety is found near 

 Granville and in the Hatch Hill and North Granville districts 

 between North Granville and Whitehall. Its occurrence is confined 

 to areas of Lower Siluric age. Purple, variegated and different 

 shades of green slate are produced from Cambric areas, prin- 

 cipally around Middle Granville, Salem and Shushan. The un- 

 fading green, which also commands a good price for roofing pur- 

 poses, is quarried to some extent in Washington county, but the 

 greater quantity comes from across the border in Vermont. 



Up to the present time the production of slate for other than 

 roofing purposes such as mantels, billiard tables, floor tiling, black 

 boards, etc., has not been developed to any extent in this section. 

 It ' is an important branch of the slate trade of Pennsylvania 

 and Vermont, and there is no doubt that increased attention 

 to this branch would greatly assist the advancement of the in- 

 dustry. 



The reports received for 1904 show that 10 firms were engaged 

 in quarrying slate during the year. The total output was 18,090 

 squares of roofing slate, valued at $86,159, and $7441 of mill 

 stock. Compared with the previous year the statistics indicate 

 a decline of about 15% in the combined value of both products, due 

 almost entirely to the smaller quantity of mill stock made. -The 

 roofing slate averaged $4.76 a square, which is higher than the 

 general run of prices received, in other slate-producing regions. 

 Of the quantity given, about 6000 squares were red slate. 



Among the leading producers in 1904 were the following: 



NAME LOCATION OF OFFICE 



Mathews Consolidated Slate Co. Poultney Vt. 



Algonquin Red Slate Co. ^ Worcester Mass. 



Granville Slate Co Granville N. Y. 



Montauk Slate Co Middle Granville N. Y. 



John W. O'Brien Middle Granville N. Y. 



Allen & Williams Middle Granville N. Y. 



