NEW JERSEY 415 



Photographed by J. P. Iddings 

 6| by Si inches. Negatives in United States Geological Survey 



726. Columnar basalt, O'Rourke's quarry, Orange mountain, New Jersey. Con- 



verging column in middle of quarry. Described in American Journal of 

 Science, third series, volume xxxi, 1886, pages 321-331 (No. 119). 



727. The same, northern end of quarry (No. 118). 



728. The same. Southern end, showing the curved, tapering ends of vertical 



columns and the junction of two groups of small columns (No. 117). 



729. The same, showing converging columns and large vertical columns (No. 121). 



730. The same, showing large vertical columns with spheroidal parting and trans- 



verse, chiseled structure (No. 123). 



731. The same, another picture of the quarry (No. 122). 



732. Intrusive basalt, showing columns of cooling, Orange quarry, New Jersey 



(No. 120). 



Photographed by R. D. Salisbury, University of Chicago, Chicago, Illinois 

 8 by 10 inches 



733. Roclie moiitonnee (trap), one mile east of Englewood, New Jersey, on Palisade 



avenue ; showing broad, deep grooves. 



734. Glaciated surface of trap exposed by the excavation for the reservoir at 



Weehawken, New Jersey. In addition to the glaciation of the surface, the 

 photograph shows the phenomena of " plucking." 



735. Perched block of Triassic sandstone, 12 by 8 by 8 feet, on Palisade ridge, east 



of Englewood, New Jersey, near the summit. Beneath the boulder the 

 trap surface shows polishing and grooving, but where the surface has not 

 been protected the polishing and grooves have disappeared by weather- 

 ing. The boulder has probably been lifted 180 feet. 



736. Glaciated surface of trap exposed by the excavation for the reservoir at 



Weehawken, New Jersey. In addition to the glaciation of the surface 

 the photograph shows the phenomena of " plucking." 



New York 



Photographed by G. K. Gilbert 



4 by 5 inches. Negatives in United States Geological Survey 



737. Shore of lake Ontario, Griffin bay, New York. The waves have excavated 



a cliff from boulder clay, but have not been able to remove the larger 

 boulders (No. 922). 



738. Shore of lake Ontario, Griffin bay. A barrier of shingle separates a lagoon 



from the lake (No. 923). 



739. On western shore of Cayuga lake, at East Varick, New York. A delta modi- 



fied in outline through deflection of shore currents by a projecting pier 

 (No. 924). 



740. Views of Iroquois shore, near Wolcott, New York. A sea-cliff, cut from a 



drumlin, appears just to the right of the center, and a spit running to 

 the left bears a house and barn (No. 925). 



