1893.] NATURAL SCIENCES OF PHILADELPHIA. 219 



power and grace with which he could paint in spoken or written 

 words, the aspects and moods of that world of nature, great and 

 small, in field and forest, that he so dearly loved and enjoyed with 

 all the sincerity and philosophical sobriety of an Emerson. That 

 these traits and his readiness also to offer advice and help to 

 beginners in the fields of animal and vegetable histology (in both of 

 which he was a deservedly recognized authority), his uniform 

 kindness of manner, uprightness and purity of character, have 

 endeared his memory to his fellow-members of the Academy. 



Cretaceous Ammonites and other Fossils near Moorestown, N. J. 

 Their stratigraphic ])osition shoivn by an Artesian Well Section at 

 Maple Shade, N. J. Incidental reference to Water Horizons. — Lewis 

 Woolman stated that during the fall of 1892 there had been placed 

 in his hands for identification by Joseph Walton of Moorestown, N. 

 J., an interesting set of cretaceous fossils collected by him at the 

 clay pits belonging to A. A. Reeve upon the left bank of the north 

 branch of the Pensauken Creek, two miles very slightly south of 

 west from Moorestown station and between Maple Shade and Lenola 

 stations on the Burlington County R. R. 



The fossils are mainly in the form of casts, and are remarkably 

 well-preserved in comparison with similar fossils from other locali- 

 ties in the State. 



The most noticeable among them are two species of Ammonites 

 each about twelve inches in diameter, being considerably larger 

 than any of the same species now in the Academy's collection from 

 the State of New Jersey, though there are in the Museum two 

 individuals of one of the forms from the Delaware and Chesapeake 

 Canal that measure respectively 16 and 18 inches across. 



The number of species collected by Joseph Walton numbered 

 twenty-three, all mollusks except one — an Echinus. 



More recently visits to the locality have been made by C. W. 

 Johnson with a class from the Wagner Institute, by Prof. A. 

 Heilprin with the Academy's Geological Class and by the speaker 

 accompanied by Professors Smock and Salisbury. 



These parties collectively obtained not only all the molluskan 

 forms found by Joseph Walton but also forty-two additional ones 

 mostly of the smaller forms. This makes the total number of 

 species of mollusks sixty-four. 



There were also found fish remains consisting of teeth belonging 

 to the genus Pycnodus, and also undeterminable fragments of bones 

 and portions of crab's claws together with considerable lignite. The 

 latter was in some cases much bored by the Teredo and the cavities 

 frequently lined with minute crystals of iron pyrites. A number 

 of specimens of Martesia cretacea showing the shell were also 

 found in burrows thev bad themselves made in the wood. 



