CLAYS OF NEW YOEK 911 



PeriodiGols (continued) 



Paving and municipal engineering (montlily). Indianapo- 

 lis, Ind. 

 Thonindustrie Zeitung. Berlin, Ger. 

 Topfer und Ziegler Zeitung. Berlin, Ger. 

 Philips^ W. B. Eng. & min. jour. 42: 326; and Journal iron 

 and steel inst. 1887. no. 1, p. 389 (c). 



Piatt, F. Test of firebrick. 2d. Pa. geol. sur. rep't M. M. 

 18Y9. p. 2Y0 (&). 



Bies, H. Clays of United States. Mineral industry. 2 (c) 



• • Clays of Hudson river valley. lOtli aim. rep't IST. Y. 



state geol. 1890. 



• Clay industries of 'Nem York. Bull. IST. Y. state mu- 

 seum. 1895. V. 3. no. 12 (c). 



Tectmology of tke clay working industry, 16tli ann. 



rep't U. S. geol. sur. pt 4, p. 523 (&). 



• • Pottery industry of the United States. lYth ann. rep't. 



Ibid, pt 3, p. 842 (jb). 



■ Clays of Florida. Ibid. p. 8Y1. 



Clays of Alabama. Bull. Ala. geol. sur. (a). 



■ Tbe clay working industry in 1896. 18th ann. rep't 



U. S. geol. sur. 189Y. pt. 5, p. 1105 (c). 



' The ultimate and rational analysis of clay and their 



relative advantages. Trans. Amer. inst. min. eng. 28. 



The kaolins and fireclays of Europe. 19th ann. rep't 



U. S. Geol. sur. pt. 5. 



The clays and clay industries of iN'orth Carolina. 



N*. C. geol. sur. Bull. 13. 



■ Origin and nature of shale. IVIichigan miner, v. 1, 



no. 11; V. 2, no. 2-3. 



Societies. Transactions of the American ceramic society. 

 Columbus. 



Smith, E. A. Clays of Alabama. Ala. Indus, and sci. soc, 2, 

 1892 (a). 



