190 



GREEN MOUNTAINS IN MASSACHUSETTS. 



The general Uthologi 



RESUME, LITIIOLOGir STRATIGRAPHY. 



character, order, and estimated thickness of the strata of Mount Greyloak, 

 mountain, and Stone hill. 



1 For Prof. E. Emmons's views see his works already referred to, especially his American Geology, Part 2, pp. 10-18, 

 48, 128. 



For Prof. James Hall's views, announced as early as IS "9-1*44, hut nor then published, see American Journal of 



Scic ii' e, 3d ser vol. 28 c Ictober, 1884, p. 31] i " Prof. James Hall on the Hudson river age of the Tar ■ slates." Also 



Jules Marcou: "On two pi <tos ,.t stm! [graphical sections of Taconic ranges by Prof. James Hall." Science, vol. 7, 1886, 

 p. 393, New York. 



ForProf. Dana's views see bis papers: " Geological Age of the Taconic System. Quarterly Journal of the Geolog 

 ical Sociely of London, vol. :«. iss-j p. :i i; ; iiu 1'aconic Kocks and Stratigraphy," America u Journal of Science, 3d ser. 

 vol. 33. May. 1887, p. 410. and also On the Sudson river Age ot tin- T.icnic Schists," etc.. ibid vol 17. 1879, p. 375. 



For Mr. Charles D Walcott s views see the map ami section appended to Ins paper. " The Taconic system of Emmons 

 and the us- of the name Taconic in -;•■'.!.,-,, nomenclature," American Journal of Science ;:d ser., vol. 25, April, May, 

 1888, pp. 307, 394, pi. 3, also -The Stratigraphical succession of the Cambrian Faunas in North America" (abstract of bis 



