BIBLIOGRAPHY 637 



Bkockmeier : Ueber Klappersteine imd verwandte Gebilde. Sitz. naturh. 

 Verb, preuss. Rheinl. D., 1909, pages 49-55. 

 Funde aus den Kiesel-oolitlischichten von M. Gladbaeh. Sitz. natur. Verb, 

 preuss. RbeinL, 1909, pages 91-96. 



H. Broderick : Note on tbe occurrence of (so-called) cave pearls. Report of 

 the British Association for the Advancement of Science, volume 

 LXXVIII, Dublin, 1908, page 704. 



J. Y. Buchanan : Manganese nodules in Loch Fyne. Nature, volume XVIII, 

 1878, page 628. 



Jerome B. Burnett: Barite "dollars" from Franklin County, Nebraska. Ne- 

 braska Geological Survey, volume VII, part 15, April, 1916, pages 105- 

 111, 6 figures. 

 Certain Dakota concretions and their mineral contents. Nebraska Geo- 

 logical Survey, volume VII, part 16, October, 1916, pages 113-123, 9 

 figures. 



E. DE Carles : Contribucion al Estudio de las Geodas Ferruginosas de Entre 



Rios, etc. An. Mus. Nac, Buenos Aires, XXIII, 1912, pages 411-415. 

 Las Geodas Ferruginosas del Ibera, Entre Rios, etc. An. Soc. cient. 

 Argent, LXXVI, 1913, pages 184-198. 



Frederick Chapman : Concretionary nodules at South Melbourne ; their re- 

 semblance to coal-balls. Geological Magazine, new series, Decade V, 

 volume III, December, 1906, pages 553-556. 



John M. Clarke : The water biscuit of Squaw Island, Canandaigua Lake, 

 New York. Bulletin of the New York State Museum, number 39, 

 volume 8, October, 1900, pages 195-198. 



F. Cohn : Ueber die Algen des Carlsbades Spriindels. Abhand. des Schles. 



Ges. Nat., 1862. 

 Grenvhlle a. J. Cole : On some examples of cone-in-cone structure. Mineral- 



ogical Magazine, volume X, number 46, March, 1893, pages 136-141. 

 L. W. Collet: Les concretions phosphaties de I'Agullias Bank (Cape of Good 



Hope). Edinburgh Proceedings of Royal Society, volume 25, 1905, 



pages 862-893. 

 John H. Cooke.: On the marls and clays of the Maltese Islands. Quarterly 



Journal of the Geological Society, volume XLIX, 1893, pages 124-128. 



G. Courty: Concretions stalactitiformes dans le Calcaire de Beauce (Paris 



Basin). C. R. Assoc, franc. Av. Sci., volume XXXVI, part I, page 



212 ; part 2, pages 367-369, 1908. 

 W. O. Crosby : Quartzites and siliceous concretions. Technology Quarterly, 



volume 1, May, 1888, page 397. 

 Composition of the till or boulder-clay. Proceedings of the Boston So- 

 ciety of Natural History, volume XXV, 1892, pages 115-140. (Read 



May, 1890.) See remarks on "Rock Flour." 

 Dynamical and Structural Geology, 1892, pages 270-279. 

 G. Cuvier: Recherches sur les Ossemens Fossiles, third edition. Tome II, 



part I, 1825, page 341. 

 R. A. Daly: Calcareous concretions. Kettle Point, Lamblois County, Ontario. 



Journal of Geology, volume VIII, 1900, pages 135-150. 



