[i 9 oo.] 



62 



LACROIX, A. 14. Collection de Mineralogie du Museum d'Histoire Naturelle. 



Guide du Visiteur. Deuxieme Edition. Pp. 1-112, 1 pi. 8vo. Paris. 1900. 

 . See Bareois, C, &c. ; also Michel-Levy, A. 



LADRIERE, J. Note pour servir a l'Etude des Limons de la Feuille de Laon 



(Carte geologique au 1 : 80,000). Ann. Soc. geol. Nord, xxix. pp. 6-15. 1900. 

 . See Gosselet, J. 



LAFFITE, H. Notes sur les Caracteres geologiques presentes par le Terrain 



houiller au Voisinage du Calcaire Carbonifere, a la Fosse no. 10 des Mines de 



Lens. Ann. Soc. geol. Nord, xxix. pp. 58-65. 1900. 

 LAKE, P. Bala Lake and the River-System of North Wales. Geol. Mag. dec. 4, 



vii. pp. 204-215, 241-245, figs. [Map, Bala Fault], pi. xi. 1900. And A.C. ; 



also Q. J. G. S. lvi. p. 230, 1900; & Abs. Proc. Geol. Soc. 1899-1900, 



pp. 47-48. 1900. 



LAKES, A. The Wide Distribution of Gold. Mines S( Minerals, Scranton, xx. 

 p. 245. 1900. 



2. History of Mining in the Nevada City and Grass Valley Region, Cali- 

 fornia. Description of the Geology of the Veins. Ibid. pp. 249-251, figs. 1900. 



■ 3. The La Plata Mountains of Colorado. A Description of the Telluride 



Veins and the Mancos Contact, Ibid. pp. 279-280, figs. 1900. 



4. Coeur d'Alene Mining Region (Oregon). Ibid. pp. 303-304, figs. 1900. 



5. Butte Mining District (Mont.). Ibid. pp. 348-350, figs. [Map.] 1900. 



■ 6. Geological Notes along the Line of the Santa Fe Railroad from Denver, 



Colorado, to El Paso, Texas. Ibid. pp. 374-375, figs. 1900. 



7. The Lamartine Mine at Idaho Springs, Colorado. — A Celebrated Gold and 



Silver Mine with a difficult Drainage Problem. Ibid. pp. 385-387, figs. 1900. 



8. The Mines of Butte. — A Description of some of the Leading Features of 



the large Operations around the City. Ibid. pp. 395-397, figs. 1900. 



9. Mining Camps of the Northwest. — A Sketch of some of the Leading 



Camps in Northern Washington, Idaho, Oregon, and British Columbia. Ibid. 

 pp. 422-423. 1900. 



10. A peculiar Fault and a Problem in Coal-Mining. — A Coal Seam thrown a 



Half-mile Horizontally out of Position. [Golden (Colo.).] Ibid. pp. 439-440, 

 fig. 1900. 



11. The Mines of Butte. — A Description of the Gagnon Mine, the Original 



Mine, and the Stewart Mine. Ibid. pp. 469-471, figs. 1900. 



12. . — The Copper Veins of the Colusa Parrott Mine and a Descrip- 

 tion of the Silver Belt. Ibid. pp. 529-531, figs. 1900. 



■ 13. A Trip to Rossland, British Columbia. — An Account of some of the 



Mines and the Peculiarities of the Oi*es. Ibid. pp. 543-545. 1900. 



14. True Fissure versus Shearage-zone Veins. — Probability that the Origin 



and Method of Formation of both are practically the same. Ibid. p. 565. 1900. 



15. Classification of Rocks. Ibid. pp. 572-574, figs. 1900. 



■ 16. Copper-Deposits of the Ajo Basin and Gila Basin, Arizona. Ibid . xxi. 



pp. 12-15, figs. 1900. 



17. Argo or Newhouse Tunnel, Idaho (Colo.). [With Notes on the Roth- 



schonber°;er Stollen, Saxony, and the Sutro Tunnel, Washoe Range (Nev.).] 

 Ibid. pp. 31-33, figs. 1900. 



18. The Granitic Rocks. Ibid. pp. 38-39. 1900. 



■ 19. The Haile Gold Mines of South Carolina. Ibid. pp. 55-57, figs. 1900. 



20. Example of the Granitic Series in the Field. Ibid. pp. 84-85, figs. 1900. 



. 21. Igneous Rocks.— Andesites. Ibid. pp. 125-126, figs. 1900. 



■ 22. Exploring a new Placer-Field. [Alma Basin.] Ibid. pp. 128-129, figs. 



1900. 



■ 23. The ' Down Town ' Mines of Leadville (Colo.). Ibid. pp. 147-149, fig. 



1900. 



■ 24. The Great London Fault of the Mosquito Range, South Park (Colo.).— An 



Illustration of the Evolution of a Fault. Ibid. pp. 204-205, figs. 1900. 

 ■ 25. A Description of the Rich and Peculiar Deposits and Methods of Working 



them near Breckenridge, Colorado. Ibid. p. 222. 1900. 

 ■ 26. Peculiar Mines and Ore-Deposits, their Advantages and Disadvantages. 



The Contact-Deposits of the La Plata Mountains (Colo.). Ibid. pp. 224-225, 



figs. 1900. 



27. Basalts and Basaltic Lavas. Ibid. pp. 228-229, figs. 1900. 



LA KIN, M. H., &c. Description of the Fossil Ichthyosaurus platyodon found at 



Stockton (Warwick). Hep. Rugby School Nat. Hist. Soc. 1899, p. 50, 1 pi. 1900. 

 LALANDE, P. La Grotte de Saint-Martin, Commune d'Excideuil (Dordogne). 



Spelunca, v. pp. 57-58. 1899. 



