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NEW YORK STATE MUSEUM 



REPORT FOR 1904 



The director's report is substantially a presentation of the 

 reports of the heads of the various scientific sections and these 

 I submit herewith. They are followed by a general statement as 

 to the condition of the scientific collections. 



GEOLOGY AND PALEONTOLOGY 



The duties of the geologist and paleontologist divide themselves 

 into field operations and office work. In view of the small number of 

 workers on the permanent scientific staff it has been our practice to 

 enlist, so far as our appropriations and the enthusiasm of others have 

 permitted, the services of temporary aids recognized as expert 

 in their various lines of scientific interest. With such assist- 

 ance we are able to meet, in some measure, the demand for the 

 more exact knowledge of our geologic formations and mineral 

 deposits commensurate with the area and growing commercial 

 interests of the State. It is the good fortune of the State to have 

 been able to enlist in this scientific enterprise so many workers 

 of distinguished ability and recognized authority, and it is a 

 source of congratulation that circumstances permit us to avail 

 ourselves of so high a grade of scientific talent without involv- 

 ing the State in any serious obligation therefor. To these gen- 

 tlemen we owe much, for sometimes their work is carried on 

 wholly without remuneration and at others for a compensation 

 so insufficient that the pleasure and satisfaction in doing the 

 work has remained the chief return from their labors. 



Operations in the field 



Precambric geology 



Geology of Long lake quadrangle. Prof. H. P. Cushing, who 

 for several years has been concerned with the study of the crys- 

 talline rocks of the Adirondacks, has this year devoted his time 

 to the areal mapping of the Long lake quadrangle. This work 

 was substantially finished. 



The Long lake quadrangle is centrally located in the mountain 



region and is of exceptional interest in that practically all the 



Precambric formations of the Adirondack area are there pres 



ent with their characteristic topographic expression. The no'' 



eastern part of this quadrangle is occupied by an extensiv^ ^ 



of anorthosite, the northwestern by an equally lar^ 1 . 



, . , 1 • .1 L ne area for a 



syenite, their boundary running southeast across 



