644 E. M. KIXDLE CAXADLIX PLEISTOCENE COXCEETIOXS 



Oolites of Great Salt Lake and the Red Sea. American Geologist, Novem- 

 ber, 1892, page 379 ; also in Botanisches Centralblatt, 1892. W. 35. 



J. J. RuTLEDGE : The Clinton iron-ore deposits of Stone Valley, Huntingdon 

 County, Pennsylvania. American Institute of Mining Engineers, Bi- 

 monthly Bulletin, number 24, November, 1908, pages 1057-1087, -4 

 figures. 



Frank Rutley : On a spherulitic and perlitic obsidian from Pilas-Jalisco, 



Mexico. Quarterly Journal of the Geological Society, volume XLYII, 



1891, page 531, plate xviii, figure 3. 



On the dwindling and disappearance of limestones. Quarterly Journal of 



the Geological Society, volume XLIX, 1893, pages 372-382, plate xviii. 



Jas. M. Satford : Geology of Tennessee, 1869, pages 458, 459. 



Alex. Scott : The application of Colloid Chemistry to Mineralogy and Petrol- 

 ogy. Fourth Report of the British Association Comm. on Colloid 

 Chemistry and its general and industrial applications, page 204. 



WnxiAM B. Scott : An Introduction to Geology, 1897, pages 227, 229, 230, fig- 

 ui-es 86, 87. 



Shaler, Woodworth, and Marbttt : Glacial brick clay of Rhode Island and 

 southeastern Massachusetts. United States Geological Survey, Seven- 

 teenth Annual Report, part 1, 1895-1896, page 993. 



M. R. R. SiVAX : Phosphatic nodules of Trichinopoly and their availability as 

 manure. Year Book. Madras Agricultural Department, 1918 ; and 

 Agricultural Research in Madras, Nature, volume 103, 1919, page 137. 



W. J. SoLLAS : On the flint nodules of the Trimmingham chalk. Annals and 

 Magazine of Natural History (5), volume YI, 1880, pages 384-395, 

 437-461, plates xix, xx. 



H. C. Sorby: On the origin of "cone-in-cone." British Association Report, 

 part 2, 1859, page 124. 

 Application of quantitative methods to the study of rocks. Chapter XV, 

 Concretions. Quarterly Journal of the Geological Society, volume 

 LXIV, 1908, pages 215-220. 



C. R. Stauffer, G. D. Hubbard, and J. A. Bowxockeb : Geology of the Colum- 

 bus Quadrangle. Bulletin of the Geological Survey of Ohio, series 4, 

 number 14, 1911, pages i-viii, 1-133. 



H. B. Stocks : "Coal Balls'' and "Baum Pots'' in the Lower Coal Measures. 

 Yorkshire Geological and Polytechnic Society, 1883. 

 Proceedings of the Yorkshire Geological and Polytechnic Society, new 



series, volume VIII, 1884, page 394. 

 On certain concretions from the Lower Coal Measures and the fossil 

 plants which they contain. Proceedings of the Royal Society of Edin- 

 burgh, volume XX, 1893, pages 70-75. 

 Concretions in the Lower Coal Measures. Quarterly .Journal of Geology, 



volume LVIII, 1902, pages 46-58. 

 On the formation of carbonate of lime under various conditions. Journal 

 of the Society of Chemical Industry (London), April, 1902, pages 527- 

 531. 

 Analj'sis of a hydraulic limestone concretion from the Yorkshire coast, 

 with remarks on concretions generally. 



