THE NONMKTALLIC MINJ^RALS. 381 



Theodor Delmar. Das I'liosphoritlager vou Steinbach uiid allgemeine Gesicht- 

 spunkte i'lber Phosphorite. 



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

 Henri Lasne. Sur les Terrains phosphates iles environs de Doullens. Ktage S6no- 

 nien et Terrains superposes. 



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

 Idem, XX, 1892, p. 211. 

 Idem, XXII, 1894, p. 345. 

 Albert E. Ledoux. The Phosphate Beds of Florida. 



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

 H,ialmar Lundbohm. Apatitlorekouister I Gellivare Malmberg och Kringliggande 

 Trakt. 



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

 X. Stainiee. Les depots phosphates des environs de Thuillies. 



Annales de la tSociet^ 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'Invilliers. 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. 

 Hjalmar Lundbohm. Apatitforekomster I Norrbottens Malmberg. 



Sveriges Geologiska Unders(")kung, 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. 

 VV. 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. 



