14 NEW YORK STATE MUSEUM 



ing brick, of which the number made was 1,090,506,000, valued at 

 $5,938,922, against 1,190,374,000 in 1912 valued at $6,666,945. 

 Front brick also showed a decline, with a value of $99,736 against 

 $109,657; fire brick and stove lining fell off, $371,408 against $380,- 

 005; and terra cotta showed a decline, $1,113,322 against $1,139,291 

 in the preceding year. The product of paving brick, on the other 

 hand, increased over 50 per cent, the output having a value of 

 $576,970, as compared with $382,984 in 1912 ; and pottery also 

 showed a notable increase. 



The production was distributed among 36 counties of the State. 

 Onondaga county had the largest clay-working industry and re- 

 ported an output valued at $1,613,395, a gain of $245,050 for the 

 year. Ulster county occupied second place with a production of 

 $1,077,655, all common building brick. Erie county with a pro- 

 duction of $1,000,055 displaced Rockland county from third place. 

 The production from Rockland county amounted to $820,475. Cat- 

 taraugus, Chautauqua and Greene counties made considerable in- 

 creases due principally to- the greater activity in the paving brick 

 industry. Other counties reporting a gain over 1912 were Albany, 

 Cayuga, Livingston, Monroe, Niagara, Ontario, Qdeens and 

 Schenectady. 



The basis of New York's clay-working industry is the wide- 

 spread occurrence of common clays that are adapted to the manu- 

 facture of building brick, drain tile and materials of that class. 

 These clays are found at the surface, being of glacial derivation 

 and are usuall}^ of blue color, weathering to yellow on exposure. 

 They burn readily and yield a product of reddish color. In addition 

 there are extensive beds of shales, especially in the Devonic for- 

 mations, which are valuable for the manufacture of paving brick 

 and pressed building brick. The deposits of white-burning clays 

 are quite restricted and occur only in certain localities on Long 

 Island and Staten Island. 



