LETTER OF TRANSMITTAL 



To Ms Excellency 



Theodore Roosevelt Governor of the State of Neiv York 



Sir: During the year beginning October 1897 active investiga- 

 tion of the geology of the state has progressed under the provis- 

 ion made by the legislature for the completion of the geologic 

 map. 



In the crystalline region of the Adirondack mountains Pro- 

 fessors J. F. Kemp, H. P. Cushing and C. H. Smyth jr have con- 

 tinued and brought to virtual conclusion the survey of this dis- 

 trict, as contemplated in the original plan for this work. These 

 gentlemen have brought to bear on a difficult region that abounds 

 in perplexing problems, an intimate acquaintance with the geo- 

 logy of the crystalline rocks, and the result of their work, pursued 

 now through several successive seasons, will permit the coloring 

 of this area on the map with much greater exactitude and detail 

 than has before been possible. Their reports are herewith ap- 

 pended; that of Prof. Kemp covering Hamilton, Warren and 

 Washington counties, Prof. Cushing's observations pertaining 

 specially to Franklin county, while Prof. Smyth gives concisely 

 the results obtained by him in the mapping of the western part 

 of the Adirondack region. 



To complete the coloration of the areas of the Jura-trias, or 

 Newark sandstone strata of the state, Dr Henry B. Kiimmel, of 

 the geologic survey of New Jersey, was employed. In his work for 

 the state of New Jersey Dr Kiimmel had given special attention 

 to the structure and distribution of these strata, and was specially 

 fitted to carry his observations over the line to the very limited 

 area covered by them in Rockland county (N. Y.) A carefully pre- 

 pared report on the geology of this formation, with a map show- 

 ing the distribution of the sandstone rocks and accompanying 

 volcanic masses, is herewith transmitted. 



