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concluded that they were Pleistocene; C. A. White in 1883 con- 

 sidered them post-Tertiary; Carville Lewis in 1884 considered 

 them to be inter-glacial in age; R. D. Salisbury in 1894 regarded 

 them as post-Pensauken but in 1895 and since has included 

 them in his Pensauken formation; Pilsbry in 1896 says that 

 they are inter-glacial or pre-glacial, probably the latter; Wool- 

 man in 1896 referred them to the Pensauken; and Shattuck in 

 1906 correlates them with the Talbot formation of Maryland. 

 In the judgment of the writer the fossiliferous stratum at least 

 is not older than the last interglacial and the probability is strong 

 though unverified that it is post-glacial in age. The same re- 

 mark is applicable to the fossiliferous peat near Long Branch 

 which has yielded seeds and fruits of a number of different 

 species of plants. 



While the present collections are too small for any very definite 

 conclusions regarding the climatic conditions which were preva- 

 lent in this latitude at the time these plants were living, it is 

 significant that of the nine forms enumerated only three are 

 species which in the recent flora range from Canada or New 

 England to Florida These are Juniperus virginiana, Hicoria 

 glabra, and Vitis aestivalis; and in all three cases the New Jersey 

 Pleistocene forms are not as conclusively determinable as would 

 be desirable. Of the remaining six species, Quercus Phellos is the 

 only one which in the existing flora extends northward beyond 

 this Pleistocene occurrence and then only for a few miles. The 

 others all have their present day northern limits of range con- 

 siderably south of their northern limits in the late Pleistocene. 

 Nyssa biflora, Vitis rotundifolia, and Taxodium distichum do not 

 range northward beyond southern Maryland at the present time, 

 while Pinus Taeda is said to find its northern limit in Cape May 

 County, N. J. Zizyphus is not represented at all in the northern 

 or central coastal plain at the present time and is mainly tropical 

 in its distribution. These facts though few in number and 

 coupled with a certain lack of precision regarding the exact age 

 of the deposits are of considerable interest since it is a well-known 

 fact confirmed by abundant and conclusive evidence that in 

 Europe the last glacial retreat was succeeded by a period during 



