384 ADDENDA. 



Britton, J. B., and C. M. Cresson. Analyses of Rocky Mountain 

 Coal. Proc. Amer. Phil. Soc. vol. xiv. pp. 358-361. 



Broadhead, Ct. C. On the Well at the Insane Asylum, St. Louis 

 County, U. S. Trans. Ac. Sci. St. Louis, vol. iii. no. 2, pp. 216- 

 223 ; plate (vertical section). 

 The boring was through Carboniferous and Silurian rocks and gra- 

 nite. Specimens were collected every few feet. Detailed section of 

 boring given, with a comparative view of geological formations in 

 Missouri. Results of experiment with regard to temperature cited. 

 The depth reached was 3843*5 feet. At 833 feet the drill (a 4|-inch 

 drill) was observed to be highly magnetized. R. B. N. 



Brown, A. J. Carboniferous Coal in Nevada. Trans. Amer. Inst. 

 Min. Eng. vol. iii. pp. 31-34. 



Describes the discovery of the " Pancake Coal," possibly the first 

 true coal found W. of the Rocky Mountains, and certainly Carboni- 

 ferous. The Geology of the Pancake Mountain is noticed. R. B. N. 



Brylinski. Les Phosphates de Chaux de la Caroline du Sud. [S. 

 Carolina Phosphates of Lime.] Bull. Soc. Geol. Norm. t. ii. fasc. 2, 

 pp. 3-74 ; 2 coloured diagrams. 



Chap. i. gives the history of the discovery and use of phosphates ; 

 Chap. ii. describes the series (Cretaceous, Eocene, Miocene, Pliocene, 

 and Quaternary) of the Charleston Basin. The phosphate-beds occur 

 in the Post- Pliocene. Chap. iii. on the origin of the phosphatic nodules, 

 suggests that they are pebbles of Eocene marl impregnated with phos- 

 phate of lime by contact with faecal deposits of the Mammalia whose 

 bones are associated with them in the Post Pliocene beds. Chap. iv. 

 deals with the use of phosphatic manures, giving new and old analyses 

 by many chemists. W. H. D. 



Bucaille, E. Coupe du Bassin des Docks du Havre. [Section in 



Havre Docks.] Bull. Soc. Geol. Norm. t. ii. pp. 75-79. 

 Alluvium (gravel, peat, mud, &c.) to a depth of 11*45 metres. 



Burton, Captain. The Volcanic Eruptions of Iceland in 1874 and 



1875. Proc. R. Soc. Edinh. vol. ix. pp. 44-58 ; 2 maps. 

 Describes a visit to the scene of those eruptions. [See p. 54.] 



Cavalli, Gr. Note sul Bacino del Po in Piemonte, concementi la 

 disposizione geologica dello strato di pudinga sotto il quale fu tro- 

 vata, nello scavo di un pozzo della casa del Barone Casana, una 

 daga di rame primitive, e suUe abbondanti acque provenienti dalle 

 grandi masse dei ghiacciai alpini che scorrono sotto tale strato. 

 [Basin of the Po, Piedmont.] Atti B. Ac. Sci. Torino, vol. xi. 

 pp. 442-457. 



