444 N^^^' YORK STATE MVSEUM 



At the present time there are in press: 



Bulletin 49, containing a series of paleontologic papc^rs^ 



entitled: 



On the Trenton conglomerate of Rysedorph hill, Rensselaer 

 CO., N. Y. and its fauna, by Rudolf Ruedemann; 



Limestones of central and western New York interbedded 

 with bituminous shales of the Marcellus stage, 



New agelacrinites, and 



Amnigenia as an indicator of fresh-water conditions during 

 the Devonic of New York, Ireland and the Rhineland, by John 



M. Clarke; 



Marcellus limestones of Lancaster, Erie co., N. Y., by Elvira 



Wood. 



Bulletin (as yet without number) being a catalogue of the 

 types of Paleozoic fossils belonging to the New York state 



museum. 



With reference to the last named publication I enter into 



some further detail. 



Catalogue of type specimens. For nearly three years, as oppor- 

 tunity has afforded, we have been carefully compiling a cata- 

 logue^ of the type specimens of the Paleozoic fossils of the 

 museum collections. Though many of these important objects 

 had been brought together by themselves, a large number were 

 found to be scattered, sometimes without distinguishing mark, 

 through the collections both in the State hall and in Geological 

 hall. It has consequently been an onerous task to identify 

 these and bring them together. This work is now virtually 

 done, and we have in press at the present writing the completed 

 catalogue of all of this valuable material. It is the purpose to 

 present this catalogue in a broad. biologic arrangement and to 

 supplement this with tables showing the geologic distribution 

 of the organisms through the rock series. While probably 

 every year will subject the list to supplementary additions, 

 as the work progresses or as more careful examination of our 

 extensive collections reveals additional type specimens, at the 

 present time the following is a statement of our possessions of 

 this kind. 



