N'ew York State Museum. ' 77 



Hamilton grou]) ; specimens nnderlying the Oneonta sandstone. 



Hamilton group. Xorth Pitciier, 150 feet above town. Eleven 

 specimens of decomposing calcareous rock, with fossils character- 

 istic of the group. 



Hamilton group. Catskill creek. Twelve specimens. 



Upper Hamilton group. Thirty specimens collected by Mr. 

 Darton in Gilboa, Schoharie county, N. Y., containing Spirifer 

 gi'anulifera, Tropidoleptus Scarinatus, trophodonta and other fos- 

 sils characteristic of the group. 



Hamilton group. Specimens from beds lying beneath the 

 Oneonta sandstone, showing the relations of this sandstone to the 

 Hamilton group as has been before shown and published in our 

 re])orts. 



Upper part of Genesee]slate ; Styliola layer. Fall brook, south 

 of Geneseo. Two specimens. 



From Coneville, two miles north of Manor Kill post-office, 

 Schoharie county. Two hundred feet above Oneonta sandstone. 

 Four specimens of coarse gray sandstone ; one specimen contain- 

 ing Spirifer mesastricdis^ the other Avith fragmentary fossils. 

 The presence of this fossil would indicate the extension of the 

 Upper Portage or Lower Chemung as far east as the locality 

 cited. 



Other specimens having temporary value in the determination 

 of the limits of geological formations for the Geological map are 

 preserved but not here recorded. 



Chemung group. Franklin, Delaware county, IST. Y. Two 

 specimens containing Spirifer mesastrialis. 



Chemung group. Sidney, hill above town at railroad station. 

 Three specimens. 



Cortland village (south of). Two hundred feet above town. 

 Nineteen specimens. Atrypa reticularis having the aspect and 

 expression of the Chemung group form; Orthis sulcata, Orthis 

 sp. i of the subgenus Rhipidomella. Strophodonta perplana var. 

 nervosa, Spirifer mesastrialis and other fossils characteristic of 

 the Lower Chemung group. 



School Collections. 

 During the summer and autumn, Mr. Sheehy and Mr. Yan 

 Deloo have selected, arranged and catalogued twenty school col-. 



