Report of the Director. 7 



To the Osteological collection there have been added about fifty specimens , 

 including thirty-three prepared skulls. 



A large number of recent shells have been cut into sections for illustrating 

 their internal structure, and about one hundred specimens of this character 

 have been added to. the collection. 



The additions to the Ethnological collections, filling nearly two cases, have 

 been arranged and labeled. The series of Table-cases, containing stone or 

 Terra-cotta specimens, occupies one hundred and thirty-six square feet of area. 

 Several additional cases are necessary for a proper exhibition of the material. 



In the Mineralogical department additional work has been done upon the 

 general collection, by the incorporation of other material belonging to the 

 Museum. The arrangement and labeling has been completed, and the collec- 

 tion is now ready for cataloguing. 



A series of Volcanic rocks and minerals, from the Van Rensselaer collection, 

 has been labeled and arranged in three Table-cases. 



The Emmons collection of crystallized minerals has been fully labeled, in 

 conformity with the other mineralogical collections. A considerable number of 

 duplicate minerals, derived from various sources, still remain in the drawers. 



The work of rearranging and labeling the geological series contained in the 

 wall cases of the first floor, which was in progress at my last report, has been 

 completed during the year. The collection is now accessible for examination 

 and study. The smaller specimens have been mounted, uniformly with the 

 mineralogical collection. The labels indicate the number of the specimen, its 

 geological position, name, contained fossils in many instances, and locality. 

 This collection is especially intended to illustrate the geological formations of 

 the State, exclusive of the palaeontological collections, and some idea may be 

 formed of the extent to which this object is carried, by a glance at the schedule 

 below, which shows the number of labeled specimens in each formation : 



No of 

 System. Group. Formation. specimens. 



Laurentian Lower 99* 



Upper 101 



Huronian , 84 



Potsdam 60* 



( Calciferous Sandstone 65 



(Lower Silurian. Quebec ^Shales and Sandstone 108 



1 (Cambrian of ( Chazy Limestone 70* 



( Sedgwick) \ ( Birds-eye Limestone 45 



Trenton ^Black-river Limestone 32. 



(Trenton Limestone 122. 



' Utica Slate 55 



tt j -D- Hudson-river Shales 101 



Hudson Kiver <( n a , , nc 



' U-ray sandstone 15 



Shawangunk Conglomerate, 15 



Medina Sandstone 100' 



r Clinton 110 



Middle Silurian.... <J (Niagara Shaly Limestone . . 105 



(Niagara ) Cuelph 10 



(Coralline Limestone 32 



( Onondaga Salt , 110 



^ ^ i ( Tentaculite Limestone 47* 



Lower HelderWg....] IZ^Z^^t 109 

 ^ Upper Pentam. Limestone.. 15- 



