134 TRANSACTIONS OF THE [jAN. 18, 



Carpolithus drup^formis n. sp. 



(PI. xi. Figs. 4, 4a.) 



Fruit about 1 in. long b^' f in. broad in the middle, elliptical in outline, 

 slightly flattened, with an obscurely defined ridge, extending all the way 

 around, giving the apex a slightly beaked appearance and somewhat flattened 

 at the base, where it joins an ill-defined peduncle. Structure, a hard ex- 

 terior shell, about -^^ in. thick, with a soft free center. Exterior slightly 

 roughened. 



This organism has the structure of the seed of a drupaceous 

 fruit, but the general appearance is strikingly like that of a cycad. 

 As we do not know, however, whether its present condition is 

 similar to what it was originally, or whether its structure has 

 been altered by replacement of material, I have thought it best 

 not to indicate any generic relationship in the name. 



Maps and Specimens Shown. 



1. Geological map of New Jersey. Geol. Surv. N. J. (1890) 

 Atlas Sheet No. 20. 



2. Ibid. A topographical map of the Monmouth shore, etc., 

 Atlas Sheet No. 9. 



3. Molluscs in hardened masses of clay marl. 



4. Concretions containing crustaceans. 



5. Clay marl and concretions containing plant remains. 



6. Lignite masses and cones, accompanied by pyrite nodules. 



Appendix. 



Since the preceding paper was written I have received from 

 Dr. F. H. Knowlton,the following description, based upon speci- 

 mens of lignite from the ClifTwood bluflf, prepared for microscopic 

 examination : 



PiTYOXYLON HoLLiCKi Knowlton, n. sp. 

 (Figs. 1, 2.) 



Diagnosis. — Annual ring absent or very obscure ; wood cells 

 large, thick-walled ; punctations contiguous, in one, or interrupted , 

 in two rows; medullary rays numerous, in one or two series, 

 with five to twelve superimposed cells ; resin-passages numerous, 

 large. 



Transverse Section. — The structure shows fairly well in this 

 section, but offers no specific characters of much value. The 

 annual ring is absent, judging from the sections submitted. It 

 is possible that a larger area would reveal them, but if present 

 they are probably obscure. The wood cells are rather large and 

 thick- walled, and ai-ranged in quite regular radial rows. 



