64 RECENT PUBLICATIONS 



— United States Coast and Geodetic Survey, Centennial Celebration of the, 



April 5 and 6, 1916. [Washington, 1916.] 

 — Washington Academy of Sciences, Journal of the. Vol. VI. [Baltimore: 



Waverly Press, 1916.] 



. Vol. VII, 191 7. 



— ^Washington University Studies. Vol. III. Part I, No. i (July, 1915), No. 



2 (J^inUary, 1916). Part II, No. 2 (April, 1916). Vol. IV. Part I, No. i 



(July, 1916). [St. Louis.] 

 — Watson, Thomas L., and Beard, R. E. The Color of Amethyst, Rose, 



and Blue Varieties of Quartz. No. 2220. From the Proceedings of the 



United States National Museum, Vol. LIU, pp. 553-63. [Washington, 



1917.] 

 — West Virginia Geological Survey. County Reports, 191 7. Braxton and 



Clay Counties. With 4 maps, showing topography, general and economic 



geology, of each county. [Morgantown, 1917.] 

 . (I. C. White, State Geologist, assisted by R. V. Hennen, D. B. 



Reger, and R. C. Tucker.) Map of West Virginia showing coal, oil, 



gas, iron ore, and limestone areas. [Morgantown, 191 7.] 



(I. C White, State Geologist, assisted by R. V. Hennen and R. C. 



Tucker.) Map of West Virginia showing railroads. [Morgantown, 

 1917.] 



— Western Australia Geological Survey. Annual Progress Report of the 

 Geological Survey for the Year 1915. With an index map. [Perth, 1916.^ 



. General Index to Reports, 1870-1910. Bulletin 60. [Perth, 191'^ ; 



— Wherry, E. T. Glauberite Crystal-Cavities in the Triassic Rocks of F .st- 

 ern Pennsylvania. From the American Mineralogist, Vol. I, No. si PP- 

 37-43. September, 1916. 



Soil Chemistry. A Chemical Study of the Habitat of tVe Walking 



Fern, Comtosorus rhizophyllus (L.) Link. From the Journa' of the Wash- 

 ington Academy of Sciences, Vol. VI, No. 20. December 4, 1916. 



—Wherry, E. T., and Brown, G. V. An American Occurrence of Miloschite. 

 Reprinted from the American Mineralogist, Vol. I, No. 4, f>p. 63-67. Oc- 

 tober, 1916. 



— ^Wisconsin Academy of Sciences, Arts, and Letters, Transactions of the. 

 Vol. XVIII, Part II. [Madison, 1916.] 



— Yorkshire Geological Society, Proceedings of the. New Series, Vol. XIX, 

 Part III, pp. 75-253. [Leeds: The University, 1916.] 



— Young, L. E. Surface Subsidence in Illinois Resulting from Coal Mining. 

 Illinois Coal Mining Investigations, Co-operative Coal Mining Series, 

 Bulletin 17. [Illinois Geological Survey. Urba- ,, 1916.] 



— Young, L. E., and Stoek, H. H. Subsidence Resulting from Mining. 

 Illinois Coal Mining Investigations, Co-operative Agreement, Bulletin 

 91. Engineering Experiment Station, Univeisity of Illinois Bulletin, 

 Vol. XIII, No. 49. [Urbana, 1916.] 



