345 
Preliminary Contribution to Our Knowledge of the Cretaceous Forma- 
mation on Long Island and Eastward. Arthur Hollick (Trans. 
Be Yc Acad, Sei; si, 239-337 PL Vi) 
This paper follows a previous one by the same author on 
“ Plant Distribution as a Factor in the Interpretation of Geological 
Phenomena, with Special Reference to Long Island and Vicinity,” 
and may be considered as a demonstration of some of the points 
which were previously merely surmised as probable. 
An historical sketch and bibliography of early researches in 
the cretaceous of Eastern North America is given, after which the 
author gives the results of his personal investigations of the plant 
remains found on the north shore of Long Island, notably in the 
vicinity of Glen Cove. The results obtained prove the existénce 
there of cretaceous strata beyond doubt, and give indications of 
their’ former existence at other points along the north shore of 
the Island. The author is able to identify many of the fossil 
leaves with those previously found in the cretaceous of New 
Jersey, Staten Island and Martha’s Vineyard. 
The following are figured: Liriodendron simplex, Newb.; 
Laurus Plutonia, Heer; Myrtophyllum (Eucalyptus ?) Geinitst, Heer ; 
Sapindus Morrisoni, Lesq.; Dalbergia Rinkiana, Heer.; Magnolia 
Capellini, Heer.; M. speciosa, Heer.; Sassafras (Araliopsis) acutilo- 
bum, Lesq., and Diospyros primeva, Heer. N. L. B. 
Plant Distribution as a Factor in the Interpretation of Geological 
Phenomena, with Special Reference to Long Island and Vicinity. 
Arthur Hollick (Trans. N. Y. Acad. Sci., xii. 189-202). 
The author discusses the occurrence of the pine barren flora 
On Staten Island, Long Island, Nantucket and in Southeastern 
New England, and endeavors to reason how it came to the latter 
region. As no trace of it is to be found on the mainland between 
New Jersey and Rhode Island, the conclusion is reached that it 
must have spread from Long Island. It is at this point that the 
8eological part of the discussion enters, and from the conditions 
BOW existing it is inferred that the land connection must have ex- 
isted between Long Island and Southeastern New England in re- 
‘Cent geological times, thus affording a land area over which the 
flora migrated from the southward on the retreat of the conti- 
ental glacier. wee oka Bs 
