14 NEW YORK STATE MUSEUM 



On Long Island and Staten Island are found local deposits of 

 Cretaceous clays, similar to those of New Jersey. They have been 

 utilized to some extent for stoneware and brick by Long Island 

 manufacturers, but the principal developments have been at Kreisch- 

 erville and Green Ridge, Staten Island. At Kreischerville, excellent 

 grades of fire brick and fancy pressed brick are made from these 

 clays. 



Besides the surficial clays, the shale beds which are found in the 

 Paleozoic strata, especially of the Devonic system, afford much 

 material that is adapted for building and paving brick, terra cotta, 

 tile etc. They are utilized mainly in the southern and western sec- 

 tions. Among the localities where they are worked are Angola 

 and Jewettville. Erie county; Jamestown, Chautauqua county; 

 Alfred Center, Allegany county; and Corning, Steuben county. 

 At Catskill, on the Hudson, building and paving brick are made 

 from Hamilton shale that is dug at Cairo. 



The manufacture of porcelain and chinawares has become an 

 important branch of the industry, having shown a quite remarkable 

 growth during the last decade. Its importance, however, is ascrib- 

 able to the local facilities for assembling the raw materials and 

 marketing the finished products. The kaolin and ball clays for the 

 purpose are brought in from the southern states, and some of the 

 kaolin is imported from England. The quartz and feldspar mostly 

 come from Now England, though of these materials New York 

 possesses considerable resources which would seem to be capable 

 of supplying some of the local requirements. 



PRODUCTION OF CLAY MATERIALS 



The accompanying tables give the production of clay materials 

 during the last two or three years, the statistics being arranged 

 according to items of manufacture and also, so far as practicable, 

 according to counties in which the operations were carried on, 

 They are based on reports submitted by the individual plants. 



There was some improvement in the conditions affecting the 

 clay-working industry last year as compared with those prevailing 

 in 1910 and 191 1, most noticeable in the increased output of build- 

 ing brick, which represents in value about one-half the entire 

 production. The gain may be considered as indicative of a more 

 normal state of business, after the pronounced depression that 

 characterized the previous season, but did not suffice to bring the 



