200 NEW YORK STATE MUSEUM 



spent by Mr Luther in the study of the Hammondsport quad- 

 rangle with reference to continuing the stratigraphic coloration 

 from the Naples sheet eastward. 



Mr Gilbert van Ingen, who resigned his connection with this 

 department in May to accept the position of curato'r of inverte- 

 bi*ate paleontology in the E. M. Museum, Princeton Uniyersity, 

 was engaged during the latter part of last season and into the 

 winter in the preparation of an account, stratigraphic and paleon- 

 tologic, of the complicated region about the cement quarries of 

 Rondout, Ulster co. His solution of this problem is published 

 in the annual report of the department. 



Mr C. A. Hartnagel continued his study of the relations of the 

 Cobleskill limestone by field work from Port Jervis northward to 

 Kingston and in central New York about Cherry Valley, Manlius, 

 Jerusalem hill and westward. The results of Mr Hartnagel's 

 inyestigations are now published. 



Prof. A. W. Grabau has prepared a stratigraphic map of the 

 classical Schoharie yalley region from Schoharie courthouse 

 south to Middleburg. This section is the longest and best known 

 of any of the Paleozoic rock sections of the State, but no detailed 

 map of the succession has heretofore been prepared. 



During the summer Mr G. H. Chadwick was employed in 

 making a traverse of the higher Catskill mountain sections and 

 in collecting material fo'r the study of the fauna of the Port 

 Ewen beds at and about Kingston and also in acquiring the fine 

 Oriskany fossils of Glenerie, Ulster co. 



The Paleontologist has spent some time in making extensive 

 collections of the interesting lower Devonic fossils from the lime- 

 stones at Perc^, Province of Quebec, with reference to the com- 

 pletion of the correlation study of the New York Lower Devonic 

 with the faunas of equivalent age in the eastern or Atlantic 



provinces. 



GENERAL ZOOLOGY 



At the beginning of the year the Assistant in Zoology was 

 engaged in a study of the market relations of the edible crab, and 

 a short account was given in the last Museum report. 



