THE NONMETALLIC MINEEALS. 381 



THEODOR DELMAR. Das Phosphoritlager von Steinbach und allgemeine Gesicht- 

 spunkte iiber Phosphorite. 



Vierteljahrschrift der Naturforschenden Gessellschaft in Zurich, 1890, p. 182. 

 HENRI LASNE. Sur les Terrains phosphates des environs de Doullens. Etage S^no- 

 nien et Terrains superposes. 



. Bulletin de la Societe Geologique de France, XVIII, 1890, p. 441. 

 Idem, XX, 1892, p. 211. 

 Idem, XXII, 1894, p. 345. 

 ALBERT R. LEDOUX. The Phosphate Beds of Florida. 



Engineering and Mining Journal, XLIX, 1890, p. 175. 



HJALMAR LUNDBOHM. Apatitforekomster I Gellivare Malmberg och Kringliggande 

 Trakt. 



Sveriges Geologiska Undersokning, ser. C, 1890, pp. 48. 

 X. STAINIER. L6s depots phosphates des environs de Thuillies. 



Annales de la Societe Geologique Belgique, XVII, 1890, p. LXVI. 



. Les Phosphorites du Portugal. 



Idem., p. 223. 



WALTER B. M. DAVIDSON. Suggestions as to the origin and deposition of Florida 

 phosphates. 



Engineering and Mining Journal, LI, 1891, p. 628. 

 EDWARD V. D'!NVILLIERS. Phosphate Deposits of the Island of Navassa. 



Bulletin of the Geological Society of America, II, 1891, p. 75. 

 N. DE MARCY. Remarques sur les Gites de Phosphate de Chaux de la Picardie. 



Buletin de la Societe Geologique de France, XIX, 1891, p. 854. 

 EUGENE A. SMITH. Phosphates and Marls of Alabama. 



Bulletin No. 2, Geological Survey of Alabama, 1892. 



W. DE L. BENEDICT. Mining, Washing, and Calcining South Carolina Land Phos- 

 phate. 



Engineering and Mining Journal, LIII, 1892, p. 349. 

 JOHN H. COOKE. The Phosphate Beds of the Maltese Islands. 



Engineering and Mining Journal, LIV, 1892, p. 200. 



WALTER B. M. DAVIDSON. The Present Formation of Phosphatic Concretions in 

 Deep-Sea Deposits. 



Engineering and Mining Journal, LIII, 1892, p. 499. 

 D. C. DAVIES. Phosphate of Lime. 



Chaps. VII, VIII, IX, X, pp. 109-180, of A Treatise on Earthy and other 

 Minerals and Mining, 3d ed., revised by E. Henry Davies, London, Crosby, 

 Lockwood & Son, 1892. 

 H.IALMAR LUNDBOHM. Apatitforekomster I Norrbottens Malmberg. 



Sveriges Geologiska Undersokung, ser. C, 1892, p. 38. 



N. A. PRATT. Florida Phosphates; The Origin of the Boulder Phosphates of the With- 

 lacoochee River District. 



Engineering and Mining Journal, LIII, 1892, p. 380. 

 FRANCIS WYATT. Phosphates of America. 



New York, 4th ed., 1892. 

 W. P. BLAKE. Association of Apatite with Beds of Magnetite. 



Transactions American Institute Mining Engineers, XXI, 1893, p. 159. 

 . Contribution to the Early History of the Industry of Phosphate of Lime in 

 the United States. 

 Idem., p. 157. 



A. GAUTIER. Sur des phosphates en roche d'origine animale et sur un nouveau de 

 phosphorites. 



Comptes Rendus, CXVI, 1893, pp. 928 and 1022. 



