FIELD TRIPS OF THE CLUB 

 Paleobotanical Trip at Glen Cove, Long Island 



Fifteen members and guests of the club enjoyed one of the 

 most interesting events of the 1932 field schedule, on Saturday 

 afternoon, July 30, at Glen Cove, Long Island, for the study of 

 fossil plant impressions in the Cretaceous clays, under the di- 

 rection of Dr. Arthur Hollick of the New York Botanical Gar- 

 den, a distinguished authority on the subject. The tide was low 

 which gave a considerable width of strand for exploration. 

 Hundreds of the flat fragments of concretionary iron sandstone, 

 (limonite) stained red with iron, were split open and a goodly 

 number of impressions of leaves were found. Dr. Hollick has 

 kindly supplied the following list: 



Definitely identified: 



Laurophyllum lanceolatum Newberry. 



Ficus krausiana Heer; and Magnolia capellini Heer. 



Tentatively identified: 



Eucalyptus latifolia Hollick. 



Paliurus integrifolius Hollick. 



Menis per mites, sp.? 



Other impressions much resembled Sassafras. Many ex- 

 amples of lignite were seen, including one log, protruding from 

 the clay, ten inches in diameter. 



The strand was covered in one spot, below a gray stratum 

 of clay, with numerous nodules of marcasite, with fine crystal- 

 line forms, in the characteristic pyritohedrons, or 12-faceted 

 figures. Similar nodules were found in Cretaceous clays, on the 

 paleobotanical trip also led by Dr. Hollick, at Cliffwood, N. J., 

 last year. They have an interest to botanists, since the process 

 of their formation included the effects of chemical reactions due 

 to decaying vegetable matter in the pools and lagoons which 

 must have existed along the shores of the continent during 

 Cretaceous time. The process interested many of those present, 

 and Dr. Hollick has since supplied his views thereon, as follows: 



"My interpretation of the iron present in the clays and clay 

 marls is, in a general way, as follows: The original crystalline 

 rocks from which the Cretaceous deposits were derived con- 

 tained iron in the form of sulphide. In connection with the dis- 



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