APPENDIX. 

 A List of Eeference Works. 



(Additional papers have been cited in foot-notes.) 



A. — Text Books. 



ELEMENTARY. 



W. 0. Crosb v.— Common Minerals and Pvocks. D. C. Heath 

 & Co. 



Joseph LeConte. — Elements of Geology. D. Appleton cV: Co. 



ADVANCED. 



James D. Dcimi. — Mannal of Geology, 4tli edition. Ameri- 

 can Book Co. 



Archibald Geikie.— Text Book of Geology, 3d edition. ^lac- 

 niillan & Co. 



H. Alleyne Nicholson and Richard Lydekker. — Manual of 

 Pakieontology, 3d edition. William Blackwood & Sons, 

 Edinburgh and London. 



Karl A. von Zittel. — Text Book of Pakeontology. Trans- 

 lated by Charles R. Eastman, Ph. D. Macmillan «& Co. 



B — Books of a General Character. 



G. F. Wright. — The Ice Age in North America. D. Appleton 

 &Co. 



H. S. Williams. — Geological Biology. An introduction to 

 the Geological History of Organisms. Henry Holt & 

 Co., 1895. 



J. W. 2>;iT.F.s'o«.— The Geological History of Plants, Vol.LXL, 

 International Scientific Series. D. Appleton & Co. 



Geo. P. Merrill. — Rocks, Rockweathering and Soils. The 

 Macmillan Co., N. Y. 



