CHAPTER IX. 

 THE BERNARDSTON SERIES OF UPPER DEVONIAN ROCKS. 



LITERATURE. 



1. 1819, E.Hitchcock. Geology of a section of Massachusetts on Connecticut River, 



etc. Am. Jour. Sci., 1st series, Vol. I, p. 10."). 



2. 1823. E. Hitchcock. Geology, etc., of the regions contiguous to the Connecticut 



River, with map. Ibid., Vol, VI, p. 1. 



3. 1835. E, Hitchcock. Same article, separate publication. 



4. 1832, E, Hitchcock. Report on the Geology of Massachusetts. Part I, Pkonomic 



Geology, with map. Ibid., Vol. XXII, p, 1. 



5. 1833, E, Hitchcock. Report on the Geology, etc., of Massachusetts,with atlas. 



6. 1835. E. Hitchcock. Report on the (ieology of Massachusetts. 2d edition, 702 



pp.; map. 



7. 1841. E, Hitchcock. Final Report on the Geology of Massachusetts. 831 pp.; 



map. 



8. 1844, E. Hitchcock. Explanation of the newly colored map of Massachusetts, 



22 pp. 



9. 1844. E. Hitchcock. Geological map of IMassachusetts, on same sheet as the 



Borden Trigonometrical Survey Map. 



10. 1851, E, Hitchcock. On the geological age of the clay slate of the Connecticut 



River Valley. Proc, Am. Assoc. Adv. Soc, Vol. VI, p. 298. 



11. 1858. E. Hitchcock. Geological map of Franklin County, on Walling's wall map 



of Franklin County. 



12. 1861. E. Hitchcock and C. H. Hitchcock. Report on Geology of Vermont. Vol. 



I, p. 447; Vol. II, p. .598. 



13. 1870. C. H. Hitchcock. The Geology of Vermont, in the Geology of Northern 



Xew England. 



14. 1871. C. H, Hitchcock. Geological map of Massachusetts, in Walling's Atlas of 



the State. Boston, 



15. 1873. J, D. Dana. On rocks of the Helderberg era in the valley of the Con- 



necticut; the kinds including staurolite slate, hornblende rocks, gneiss, 

 mica-schists, etc., besides fossiliferous limestone. Am. Jour. Sci., 3d series, 

 Vol. VI, p, 339. 



253 



