BIBLIOGRAPHY OF TENNESSEE GEOLOGY. 61 



Proctor (R. D.) 



The mineral resources of Tennessee. 



Eng. and Min. Jour., vol. 45, 21-22, 4, 1888. 



Proctor (Charles A.) 

 See Currey, (Richard O). and Proctor (Charles A.) 



Pultz (John Leggett) 

 Mining in the Cumberland Gap coal field. 



Eng. and Min. Jour., vol. 83, pp. 808-810, 2 figs., April 27, 1907. 

 Describes the occurrence and. character of the ores. 



Pumpelley (R.) 



The relation of secular rock disintegration to certain transitional crystal- 

 line schists. 



Geol. Soc. Am., Bull., vol. 2, pp. 209-223, 1891. 



Discussed by G. H. Williams, B. K. Emerson and G. K. Gilbert, pp. 223-224. 



Abstracts: Am. Geol., vol. 7, p. 259 (2-5 p.); Am. Jour. Sci., 3d ser., vol. 



42, pp. 346-347 (4-5 p.); Am. Nat., vol. 25, pp. 363, 826-827 (% p.), 1891. 



R. 



Ramage (B. J.) 



Forest conditions and possibilities in Tennessee. 

 Forester, June, 1901, vol. 7, pp. 138-140. 



Ramsey (J. G. M.) 

 An essay on the medical topography of East Tennessee. 



Transylvania Jour, of Med. and the Assoc. Sciences, vol. 5, pp. 363-375, 1832. 

 Describes the geology of the region as transitional, not secondary, as then 

 regarded by some. 



Rauff (Hermann). 

 Palaeospongiologie. 



Paleontographica, Band XLI, pp. 223-272, pis. XX-XXVI, figs. 76-124, 1894-95. 

 Describes new species of fossils sponges from the Niagara rocks of Ten- 

 nessee and one from the Trenton of Manitoba. 



Raymond (Percy E.) 

 The Gastropoda of the Chazy formation. 



Carnegie Mus., Annals, vol. 4, pp. 168-225, 10 pis., 6. figs., 1908. 



Ries (Heinrich). 



1. The clays of the United States east of the Mississippi River. 



U. S. Geol. Surv., Professional Paper No. 11, 298 pp., 9 pis., 11 figs., 1903. 



Discusses origin, geographic and geologic distribution of clays in the 

 United States east of the Mississippi River, and their properties, com- 

 position and utilization. 



2. Clays, their occurrence, properties and uses. 



pis. XLIV, figs. 65, pp. 554, 1908. 

 Roberts (Henry M.) 



1. Report upon survey of Tennessee River from Chattanooga to the junction 



of Holston and French Broad Rivers, Tennessee. 



Chief of Eng. Kept., 1893. pt. 3, pp. 2323-2375. 

 Also, H. Ex. Doc. No. 252, 52d Cong. 2d ses. 



2. Report on preliminary examination of Duck River, Tennessee. 



Chief of Eng. Kept., 1893, pt. 3, pp. 2406-2408. 

 Also, H. Ex. Doc. No. 33, 52d Cong. 2d ses. 



