312 J.D. Dana on American Geological History. 
roll; Hrrencock, the Professors RoGErs, the well-known GEOL- 
Ists of the New York SurvEY, also, OWEN, PERCIVAL, 
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* As I have already remarked, many names are abo i ich have con- 
tributed largely to our knowle eof Aserioan Geolo ee oe 
While Dr. Morton was the disti 
by Romer in Texas, Tuomey in South Carolina, H.D. Rogers and others in Ne P 
Jersey, J. W. Barter with reference to microscopic species, and J. Lewy for Verte 
_ Remains. 
e Tertiary has been investigated by Lyetz along both the eastern and southern — 
border; also in different localities by Ft Borer M. Treats ES. ham +8. H 
L Lza, H. D. an ocERSs, Romer, J. D. Dana and W. P. Brake 
are :—Hat , VANUXEM, ons, Conran, De Verneure of Paris, t ne Pro 
fessors Rogers, Messrs, Wuurwxy and Foster, D. D. Owsy, C.'T, Jacksox, D. HoveHto’ 
