'i PUBLICJTONS OF THE 



Vol. VII,, July, 1330 — August, 1884, Geological Series, Vol. I , contains : — • 



No. 1. Notes on the Geology of the IRON and COPPER Districts of LAKE SUPERIOR 



By M E. Wadsworth. pp. 164. 6 Plates. July, 1880. $2.25. 

 No. 2. The FELSITES and their Associated Rocks North of Boston. By J. S. Dilleb 



pp.16. May, 1881. 15c. 

 t No. 3. On an Occunence of GOLD in Maine. By M. E. Wadsworth. p. 1. May, 1881. Ic. 

 t No. 4. A Microscopical Study of the IRON ORE or PERIDOTITE of Iron Mine TTill, 



Cumberland, Rhode Island. By M. E. Wadsworth. pp.5. May, 1881. 5c. 

 No. 5. Obsei-vations upon the Physical GEOGRAPHY and GEOLOGY of Mount Ktaadn 

 and the adjacent District. By C. E. Hamlin, pp. 35. 2 Plates. June, 1881. 55c. 

 No. 6. Report on the recent additions of FOSSIL PLANTS to the Museum Collections. 



By L. Lesqueredx. pp. 6. October, 1881. 5c. 

 No. 7. The great DIKE at HOUGH'S NECK, Quincy, Mass. By J E. Wolff, pp. 12. 



July, 1882. 10c. 

 No. 8. On some specimens of Permian FOSSIL PLANTS from Colorado. By Leo 



Lesquereux. pp. 4. October, 1882. 3c. 

 t No. 9. On the relations of the TRIASSIC TRAPS and SANDSTONES of the Eastern 

 United States. By William Morris Davis. 3 Plates, pp. 59. January, 1883 75c. 

 t No. 10. The Folded Helderberg LIMESTONES east of the Catskills. By Willla.m Morris 

 D.AVis. pp. 20. 2 Plates. January, 1883. 25c. 

 No. 11. The AZOIC SYSTEM and its Subdivisions. By J. D. WnrrNEY and M. E. Wadsworth. 

 pp. xvi. and 335. August, 1884. $2.50. 



Vol. VIII., December, 1880 — March, 1881, contains : — 



No. 1. Reports on the Results of DREDGING by the U. S. C. S. Steamer ' ' Blake." VIII. 



Etudes preliminaires sur les Crustaces. Par A. Milne-Edwards. le. Partie. 



pp. 68. 2 Plates. Di eember, 1880. 90c. 

 No. 2. Reports on the Results of DREDGING by the U. S C. S. Str. "Blake." IX. 



Preliminary Reports on the ECHINI. By A. Agassiz. pp. 7. December, 1880. 5c. 

 No. 3. New and little-known REPTILES and FISHES in the Museum Collections. By 



S. Garman. pp 11. February, 1881. 10c. 

 No. 4. List of DREDGING STATIONS occupied during the year 1880 by the U. S. C. S. 



Str. " Blake." pp. 4. February, 1S81. 5c. 

 No. 5. Reports on the Results of DREDGING by the U. S. C. S. Str. " Blake." X. Re- 



port on the CEPHALOPODS and on some additional Species dredged by the 



U. S. F. C. Str. "Fish-havrk," during the Season of 1880. By A. E. VERRttL. 



pp. 17. 8 Plates. March, 1881. $1.00. 

 No. 6. The Stomach and Genital Organs of ASTROPHYTIDiE. By T. Lyman, pp. 8. 



2 Plates. February, 1881. 30c. 

 No. 7. Reports on the Results of DREDGING by the U. S. C. S. Str. "Blake." XI. Re- 

 port on the ACALEPH^. By J. AV. Fewkes. pp.14. 4 Plates. March, 1881. 50c. 

 No. 8. Studies of the JELLY-FISHES of Narragansett Bay. By J. W. Fewkes. pp. 42. 



10 Plates. February, 1881. $1.50. 

 No. 9. List of MAMMALS collected by Dr. Edward Palmer in Northeastern Mexico, 



with Field-Notes by the Collector. By J. A. Allen, pp. 7. 5c. 

 No. 10. The TRILOBITE : New and Old Evidence relating to its Organization. By C. D. 



Walcott. pp. 41. 6 Plates. March, 1881. §100. 

 No. 11. Reports on the Results of DREDGING by the U. S. C. S. Str. "Blake." XIL Re- 

 port on the SELACHIANS. By S. Carman, pp. 8. March, 1881 5c. 

 No. 12. Reports on the Results of DREDGING Vy the U. S. C. S. Str. "Blake." XIIL 



Report on the PYCNOGONIDA. By E. B. Wilson, pp. 18. 5 Plates. March 



1881. 65c. 

 No. 13. On some CRUSTACEAN DEFORMITIES. By W. Faxon, pp.18. 2 Plates. March 



1881. 40c. 

 No. 14. The DEVONIAN INSECTS of New Brunswick. By H. A. IIagen. pp.10. March, 

 1881. 10c. 



+ Ncs. 3-4, also 9-10. are not sold separately. 



