-32 NEW YORK STAT^ MUSEUM 



I.IST OF AITIIOHITIKS FOR COXXECTICL'T, »IASSACHUS£TTS, VER- 

 MO.NT, NEW JERSEY AND PENXSYLVAJlIA 



Connecticut. Dana (23, 24 and 25) modified by unpublished 

 ivsults of reconnaissance by Eckel in towns of Greenwich, Stam- 

 ford, New Canaan and Darien and H. C. Magnus in towns of 

 Salisbury and Sharon. 



Massachusetts. Dana (24, 25) except in the area covered by 

 Dale (21 and the geologic map of Monument mt, U. S. Geol. Sur., 

 14th An. Rep't), Emerson (U. S. Geol. Sur. Bui. 259 and U. S. 

 Geol. Sur. Monograph 23, pi. 1), Pumpelly, Dale, Wolff and 

 Hobbs. 



Vermont. \\'alcott (80); Dale (22j; and Brainerd and Seely. 



New Jersey. J. C. Smock (New Jersey geologic map of 1890); 

 except Green Pond mt region, by Darton (Geol. Soc. Am. Bui. 5: 

 SQT) as engraved on the Hall map (31); area about Franklin by 

 Wolff and Brooks (U. S. Geol. Sur. 19th An. Rep't); moraine by 

 Salisbury (N. J. state geologist. R<?p't 1895). 



Pennsylvania. I. C. White (G 6), H. C. Lewis (Q), Frederick 

 Prime jr (D 3) and B. S. Lyman (2d Geol. Sur. Summary Rep't, 

 V.3) 



MANUSCRIPT MAPS 



A number of manuscript maps and manuscript corrections 

 embodying the results of unpublished field work, were used in 

 the compilation of the geology of the present map. 



A manuscript map of the boundaries above the base of the 

 Portage from Cayuga lake westward was supplied by Dr John 

 M. Clarke, state paleontologist, embodying the results of field 

 work by himself and his assistant, Mr D. D. Luther up to 1898. 



Dr Clarke also contributed, as noted above, numerous manu- 

 script corrections of existing maps. 



Mr C. J. Sarle, who had been engaged under Prof. James Hall 

 in field work on the Upper Silurian formations of the central 

 and western parts of the state, contributed manuscript maps 

 showing the results of this work. 



Mr N. H. Darton, whose mapping of the rocks of the Helder- 

 berg escarpment had been used on the Hall map, contributed 

 hie original manuscript drafts. 



