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Geological and Botanical Notes : 

 Cape Cod and Chappaquidick Island, Mass. 



[Investigations prosecuted with the aid of a grant from the John Strong 

 Newberry Fund of the Council of the Scientific Alliance of New York.] 



By Arthur Holuck. 



(Plates 40 and 41.) 



PAGE. 



I. Introduction 381 



II. Cape Cod 3S2 



1. General Description 382 



2. Highlands of Truro 383 



3. Provincetown 386 



(a) Geology 386 



(b ) Botany 389 



III. Chappaquidick Island 397 



1. General Description 397 



2. Geology 399 



3 . Paleon tology 399 



(a) Molluscs 400 



(b) Plant Remains 401 



IV. Conclusions 406 



I. INTRODUCTION. 



About twelve years ago the writer began the task of system- 

 atically exploring the remnants of the old Atlantic coastal 

 plain from Staten Island eastward along the southern New 

 England coast, with the special object of locating any expo- 

 sures of Cretaceous strata ; tracing and examining these 

 critically ; collecting specimens, and, from the facts ascer- 

 tained, endeavoring to determine the probable former posi- 

 tion and extent of the formation throughout the region. 

 These investigations, continued from year to year, finally in- 

 cluded Staten Island, Long Island, Block Island, Martha's 

 Vineyard, the Elizabeth Islands and Nantucket and resulted 

 in a series of papers on the geology and botany of these 

 localities, most of which were read before the New York 



