352 REPORT OF NATIONAL MUSEUM, 1899. 



The bibliography of claj^s is very extensive, and but a few references 

 are given here. The reader is referred particularly to Branner's Bibli- 

 ography of Clays and the Ceramic Arts/ and to the papers of Dr. H. Ries 

 in the reports on the Mineral Resources of the United States, published 

 annually by the U. S. Geological Survey. 



S. W. Johnson, John M. Blake. On Kaolinite and Pholerite. 



American Journal of Science, XLIII, 1867, p. 351. 

 J. C. Smock. The Fire Clays and associated Plastic Clays, Kaolins, Feldspars, and 

 Fire Sands of New Jersey. 



Transactions of the American Institute of Mining Engineers, VI, 1877, p. 177. 

 George H. Cook. Report on the Clay Deposits of Woodbridge, South Amboy, and 

 other places in New Jersey. 



Geological Survey of New Jersey, 1878. 

 Richard C. Hills. Kaolinite, from Red Mountain, Colorado. 



American Journal of Science, XXVII, 1884, p. 472. See also Bulletin No. 20, 

 U. S. Geological Survey, 1885, p. 97. 

 J. P. Lesley. Some general considerations respecting the origin and distribution of 

 the Delaware and Chester kaolin deposits. 



Annual Report Geological Survey of Pennsylvania, 1885, p. 571. 

 J. H, Collins. On the Nature and Origin of Clays: The Composition of Kaolinite. 



Mineralogical Magazine, VII, December, 1887, p. 205. 

 J. Francis Williams, R. N. Bracket. Newtonite and Rectorite — two new minerals 

 of the Kaolinite Group. 



American Journal of Science, XLII, 1892, p. 11. 

 Edward Orton. The Clays of Ohio, Their Origin, Composition, and Varieties. 



Report of the Geological Survey of Ohio, VII, 1893, pp. 45-68. 

 Edward Orton, jr. The Clay Working Industries of Ohio. 



Report of the Geological Survey of Ohio, VII, 1893, pp. 69-254. 

 H. O. HoFMAN, C. D. Demond. Some Experiments for Determining the Refractori- 

 ness of Fire Clays. 



Transactions of the American Institute of Mining Engineers, XXIV, 1894, p. 42. 

 W. Maynard HyTCHiNGS. Notes on the Composition of Clays, Slates, etc., and on 

 some Points in their Contact-Metamorphism. 

 The Geological Magazine, I, 1894, p. 36. 

 H. JocHUM. The Relation between Comi)osition and Ki'fiactoiy Characters in Fire 

 Clays. 



Minutes of Proceedings of the Institution of Civil Engineers, ('XX, 1894-95, 

 p. 431. 

 J. A. Holmes. Notes on the Kaolin and Clay Deposits of North Carolina. 



Transactions of the American Institute of Mining Engineers, XXV, 1895, p. 929. 

 Heinkich Ries. Clay Industries of New York. 



Bulletin No. 12 of the New York State Museum, III, March, 1895, pp. lUO-262. 

 John Casper Branner. Bibliography of Clays and the Ceramic Arts. 



Bulletin No. 143, U. S. Geological Survey, 1896. 

 W. S. Blatchley. a Preliminary Report on the Clays and Clay Industries of the 

 Coal and Coal-Bearing Counties of Indiana. 



The School of Mines Quarterly, XVIII, 1896, p. 65. 

 W. Maynard Hutchings. Clays, Shales, and Slates. 



The Geological INIagazine, III, 1896, p. 309. 

 Chas. F. Mabery, Otis T. Flooz. Composition of American Kaolins. 



Journal of the American Chemical Society, XVIII, 1896, \>. 909. 



1 Bulletin No. 143, U. S. Geological Survey, 1896. 



