Devonian. 



8 Thirty-second Report on the State Museum. 



No. of 

 System. Group. Formation. specimens. 



Oriskany Sandstone 86 



rCauda-galli Grit 23 



f TT TT Id h J Schoharie Grit 51 



PP I Onondaga Limestone 30 



[^Corniferous Limestone 92 



( Marcellus Shale.. 67 



Hamilton 1 Arenaceous and other Shales, 146 



( Tully Limestone 59 



Genessee Slate 14 



Portage 75 



Chemung 149 



^Catskill 74 



Carboniferous * 73 



New Red Sandstone 47 



Quaternary 90 



A colored Geological Section, exhibiting the order of succession of the New 

 York formations, has been placed above the wall-cases, extending around the 

 room, and so arranged that the representation of the succession of the forma- 

 tions corresponds with the series in the cases. The section is distinctly lettered 

 with the names and subdivisions of each formation, and, in connection with the 

 series immediately beneath it. affords a source of instruction to the student or 

 amateur which has not before been presented in the Museum. 



Duplicate Collections op Fossils and Minerals. 



Pursuant to the direction of the Secretary of the Board of Regents, one of 

 the duplicate series of specimens prepared for the Norman Schools has been sent 

 to the State Normal and Training School at Cortland. Six of the Normal 

 Schools of the State have now received the collections; others still remain, 

 subject to application to the Board of Regents, and their direction. 



Collections in the Field. 



Extensive collections have been made in the field during the past season. In 

 the western part of the State, during May and June, Mr. CD. Walcott, 

 assisted by Mr. Vandeloo, made large collections of corals and other fossils from the 

 upper Helderberg limestone and the Hamilton group. At a later period Mr. 

 Walcott continued collecting, especially fossil corals, in the limestones of Gene- 

 see and Erie counties ; and also in the same limestones in Canada West, and 

 at Kelly's Island in Lake Ontario. 



During the months of July and August, Dr. J. W. Hall, assisted by Martin 

 Sheehy, made extensive collections, chiefly of fossil corals, from the Upper 

 Helderberg limestones of Albany county. Dr. Hall has also made a geological 

 examination along the Hudson river as far as Poughkeepsie, making sec- 

 tions and extensive and instructive collections of the rocks from fifty-one locali- 

 ties. These collections will be of important aid in the study of the rocks of 

 the Hudson River Valley, and in the determination of their geological age and 

 relations. 



The entire collections made during the past season will number at least thirty 

 thousand specimens. 



The work of cutting sections of rocks and fossils, chiefly of the latter, has 

 been continued with great success ; and the machinery, and work of this kind , 



