38 ANNALS NEW YORK ACADEMY OF SCIENCES 



*6. Feimeman, N. M. 1916. Physiographic divisions of the U. S. Ann. 

 Assn. Am. Geog., VI, p. 19 (with map). 

 7. Gratacap, L. P. Geology of the city of New York. 

 *8. Powell, J. W. 1895. Physiographic regions of the U. S. Nat. Geog. Soc 



Monographs, p. 65. 

 9. Salisbury, R. D., and Atwood, W. W. 1908. Interpretation of topo- 

 graphic maps. Profes. Pap. U. S. G. S., No. 60. 



10. Semple, E. C. 1903. American history and its geographic conditions. 



11. Tarr, R. S. 1902. Physical geography of New York state. 



12. Tarr, R. S., and Martin, L. 1917. College physiography. 



13. Tower, W. S. 1905. Geography of American cities. Bull. Am. Geog. 



Soc, XXXVII, p. 577. 



14. Van Hise, C. R., and Leith, C. K. 1909. Pre-cambrian geology of North 



America. Bull. U. S. G. S., No. 360. 



15. Willis, B. 1912. Index to stratigraphy of North America. Profes. Pap. 



U. S. G. S., No. 71 (with geol. map). 



II. — New England Province 



*16. Barrell, J. Central Connecticut in geologic past. Bull. Conn. GeoL 

 Surv., No. 23. 



17. Barrell, J. 1913. Terraces of northern Appalachians. Bull. Geol. Soc. 



Am., XXIV, p. 688. 



18. Clapp, F. G. 1908. Glacial period in New England. Bull. Geol. Soc 



Am., XVIII, p. 505. 



19. Dale, T. N. 1892. Rensselaer grit plateau in New York. 13th Ann. Rept. 



U. S. G. S., Part 2, p. 291. 



20. Dale, T. N. 1898. Slate belt of New York and Vermont. 19th Ann.. 



Rept. IT. S. G. S., Part 3, p. 153. 



21. Dale, T. N. 1905. Taconic physiography. Bull. U. S. G. S., No. 272. 



22. Daly, R. A. 1903. Ascutney mountain, Vermont. Bull. U. S. G. S., No. 



209. 



23. Darton, N. H. 1894. Geologic relations from Green Pond, N. J., to Skun- 



nemunk Mtn., N. Y. Bull. Geol. Soc Am., V, p. 367. 



24. Davis, W. M. 1888. Triassic of Connecticut valley. 7th Ann. Rept. 



U. S. G. S., p. 455. 



25. Davis, W. M. 1890. Glacial sand plains. Bull. Geol. Soc. Am., I, p. 195. 

 *26. Davis, W. M. 1891. Dates of origin of topographic forms on Atlantic 



slope. Bull. Geol. Soc. Am., II, p. 545. 

 *27. Davis, W. M. 1895. Physical geography of southern New England. Nat. 



Geog. Soc. Monographs, p. 269. 

 *28. Davis, W. M. 1897. Triassic of Connecticut. 18th Ann. Rept. U. S. 



G. S., Part 2, p. 1. 

 *29. Davis, W. M. 1902. River terraces in New England. Bull. Mus. Comp.. 



Zool., XXXVIII, p. 281 (also in essays). 

 *30. Davis, W. M. 1909. Geographical essays. 



31. Emerson, B. K. 1891. Triassic of Massachusetts. Bull. Geol. Soc. Am., 



II, p. 451. 



32. Emerson, B. K. 1898. Old Hampshire county, Mass. Monog. U. S.. 



G. S., No. 29. 



