Bulletin 3. The flora of the Raritan Formation, 1911 - State of New ...

HISTORICAL SKETCH. 1I
Medial and Lower series, the former of which is now known to
be largely Eocene, while the latter included not •only part of the
present marine Cretaceous, but the Raritan and Magothy formations
as well:
During the decade of i83o to 184o, geological surveys Were
organized in New York, New Jersey, Delaware and Maryland
and these were directed, or taken part in, by William M. Mather,
Henry D. Rogers, J, C. Booth, and J. T. Ducatel. respectively.
Professor Rogers' first report, published in I836, and his final
report of four years later, recognized the following Cretaceous
formations in New Jersey:
Brown
Ferruginous
Limestone.
Greensand..
Sandstone.
Sand.
Clays and Sand.
The lowermost of these, in a vague manner, corresponds to
the Raritan formation of modern authors. Ducatel, in 'his
• report for 1837, records the Cretaceous from the eastern shore
of Maryland, and Booth, in his report, which was published
in 184I , divides the "Upper Secondary" of Delaware into the
"Rfid Clay" and "Greensand" formations. In his first reports
(1837 and 1838 ) Mather mentions the clays and sands of Staten
and, Long Islands, and he points out their probable equivalency
?vith those "of Cheeseciuake and ?datavma Point, on the New
Jersey shore." The earlier New Jersey Survey having come to
an end, a considerable interval elapsed during which local geological
activity was at a standstill. The second survey was
organized under William Kitchell, with George H. Cook as assistant
geologist, and in the first report for the year I854, Cook
commenced his series of contributions to the Cretaceous belt
of New Jersey, which continued year by year until his death,
in 1889, after a service as State Geologist extending over twentyfive
years. ' "
Considerable space is devdted, to the Woodbridge and South
Amboy clays in Professor Cook's Geology of New Jersey, published
in 1868. His divisions wereas follows: " ..
NEW JERSEY GEOLOGICAL SURVEY