1896.] NEW YORK ACADEMY OF SCIENCES. 11 



is composed of a core of more or less contorted greenish sandy 

 clay at the base, with water assorted material and abundant 

 boulder till on top. The age of this clay could not be determined, 

 as no fossils were found in place, but from its lithologic charac- 

 ters I am inclined to consider it as Tertiary, or possibly as 

 Cretaceous clay marl. 



Our special object of search was for the characteristic concre- 

 tions and fragments of Cretaceous material which have yielded 

 fossils further westward and of which I had found indications 

 on a former occasion.* The\- were discovered in plent}" and 

 amongst them wei'e a few containing fragmentary plant remains 

 and others with molluscs. The former were too indefinite for 

 accurate determination, but the latter were submitted to Pro- 

 fessor R. P. Whitfield, who kindly examined them and identified 

 the following : 



Turritella Lippincotti Whitf. 

 Dosinia Oahhi Whitf. 

 JEnona Eufaulensis Conr. 

 Veniella inflata (Conr.). 

 Veleda lintea Conr. (?) 

 Gorbula sp. ? (Species undescribed.) 

 Byssoarca sp. ? (Species not determined.) 

 In addition to which were a number of imperfect specimens, 

 representing about six other species. 



The first on the list is probably the Turritella previously 

 found by me on Moutauk Point, which at that time was only 

 determined generically.f These are aU fossils representing the 

 Lower Greensand Marl of the Cretaceous formation, and when 

 considered in connection with the fossil plant Tricalycites papy- 

 raceus Newb., found at the same locality ,| show that both the 

 marl and the Ambo}- clays were formerly repi'esented in the vi- 

 cinity. 



NOTE. 



My attention has recently been called to two articles by the 

 late Elias Lewis, Jr., on the geologj' of Long Island which had 

 escaped my notice at the time of writing previous articles on 

 the subject, viz.: 



I. " Bowlder-like masses of clay in the Long Island Drift." 

 Pop. Sci. Month., IL, (1873) 63S, in which mention is made of 

 detached bowlder-like masses of clay embedded in the Drift, at 

 Harbor Hill near Brooklyn, which are attributed to transporta- 

 tion by ice and deposition in a frozen state ; and 



*l. c. No. 9, pp. 4, 6. 

 t I. c. No. 9, p. 4. 

 X I. c. No. 9, p. 6. 



