622 LIST OF AUTHORITIES. 



Packard, A. S. Life-Histories; Manual of Zoology; Syncarida. Mem. 

 Jour. Nat. Acad. Sci. 



Phillips, J. Manual of Geology ; Geology of Oxford. 



Pictet, F. J. Traite de Paleontologie. 



Powell, J. W. Exploration of Colorado River ; Geology of Uintah Mount- 

 ains. 



Pkestwich. Geology. 



Rogers, H. D. Rep. Geol. of Pennsylvania. 



Russell, I. C. Lake Lahontan; Southeastern Oregon. U. S. G. S. Mon- 

 ograph, 11. Annual Report, 1884. 



Safford, J. M. Rep. Geol. of Tennessee. 



Seeley, H. G. Geol. Mag., vol. viii, 1881. 



Scudder, S. H. Worthen's Rep. Geol. of 111., vol. iii. Eighth Annual 

 Report U. S. G. S. 



Sekiya, S. Seism. Soc. of Japan, vol. xi. 



Sharpe, D. Quar. Jour. Geol. Soc, vol. iii, 1847. 



Sorby, H. C. Philosophical Magazine, 2d series, vol. xi. 



Stevenson, J. J. Wheeler's U. S. Geol. Survey, vol. iii — Geology. 



Taylor, R. C. Statistics of Coal. 



Traqtjair. Devonian Fishes. Ann. and Mag. Nat. Hist., 1890. 



Tyndall, J. Glaciers of the Alps. 



Upham, Warren. Ice Sheet Moraine; Geol. Survey of Minn., 1880. 



Wailes, B. L. C. Rep. Agric. and Geol. of Miss., 1854. 



Walcott, C. D. Rep. N. Y. Cabinet of Nat. Hist., 1877. 



Wallace, A. R. Geographical Distribution of Animals ; Island Life. 



Ward, H. Illustrated Catalogue of Casts. 



Ward, Lester F. Laramie Flora ; U. S. G. S. Bulletin, 37. 



Wheeler, G. M. U. S. Geog. Survey west of 100th Meridian. 



White, C. A. Wheeler's Survey, vol. iv — Palaeontology. U. S. G. S. An- 

 nual Report. 



Whitney, J. D. Geol. Survey of California ; Geol. of L. Superior District ; 

 Auriferous Gravels of California. 



Woodward, S. P. Manual of Mollusca. 



Worthen. Geol. Survey of Illinois. 



Zittell. Traite de Paleontologie. 



