THE 
NATIONAL GEOGRAPHIC MAGAZINE. 
iw) 
Vol. ie. 1890. No. 
THE RIVERS OF NORTHERN NEW JERSEY, WITH 
NOTES ON THE CLASSIFICATION OF RIVERS IN 
GENERAL. 
By WILLIAM Morris DAVIS. 
OUTLINE.—Rivers of different kinds : consequent, antecedent, superim- 
posed, subsequent, adjusted.—Topography of Northern New Jersey. 
—Revived and superimposed rivers in New Jersey.—Drainage of the 
Watchung crescent.—Re-arrangement of superimposed rivers by 
the growth of subsequent streams.—Application of this principle to 
the Green river in the Uinta mountains: Powell’s and Emmons’ 
theories. —The Green river probably superimposed and its branches 
re-arranged by the growth of subsequent streams.—Anaclinal and 
reversed rivers in New Jersey. 
NortHern New Jersey is drained by several streams which 
rise in the Archean Highlands, flow southeastward across the 
central Triassic plain and reach the sea near the inland margin of 
the Cretaceous formation. 
What kinds of rivers are these? Such a question can hardly 
be answered until we have examined rivers in many parts of the 
world, gaining material for a general history of rivers by induc- 
tion from as large as possible a variety of examples ; and until 
we have deduced from our generalizations a series of critical 
features sufficient to serve for the detection of rivers of different 
kinds wherever found. 
VOL. II. 6 
