Dale.] 196 [January 3, 



920' concealed along Easton's Beach, besides 2500' of coal meas- 

 ures further west. Professor Shaler gives the following as an 

 approximation for the whole Island: Beginning below (1)" Pri- 

 mordial" f el sites without conglomerates 800-1200'; (2) "Car- 

 boniferous" conglomerates with carbonaceous shales 500'-1000'; 

 (3) blue and greenish slates SOO^OO'; (4) carboniferous slates 

 with about six seams of coal more than one foot thick, some 

 conglomerate, 200'-500 / . 1 



Putting sections A, B, C, D, together, eliminating the dupli- 

 cated portions and adding the observations made between Brown's 

 Pt. and Church's Cove, the general section (plate 3) is obtained. 



The section line has been extended on the west to include 

 Easton's Beach 2 and the Cliffs, and on the east to include the 

 granite SE. of pt. 69. While it is not an exact section on any 

 one line it will found to include the main features of a belt two 

 miles in width, that is from near Purgatory to within a short dis- 

 tance of Taggart's Ferry. The accompanying map (pi. 1) embodies 

 the actual geological facts. In neither of them has any distinction 

 been made between the conglomerate and the accompanying grits 

 or slates, nor between carbonaceous schists and the accompanying 

 argillaceous schists. The fold in the chloritic schists is inferred 

 from the contrary dip of the strata at 68, 69 and the east side of 

 Sachuest Neck, but they may be unconformably related to 

 No. 3. The presence of the Easton's Pt. schists (5) and con- 

 glomerate (6) and the carbonaceous schists (7) all forming a 

 synclinal between Sachuest Pt. and Wood's Castle, is inferred 

 from the easterly dip of the two latter at Wood's Castle and 22, 

 etc. The anticlinals at Taggart's Ferry and between ridges VI 

 and VII in Paradise have already been shown. The hornblende 

 and mica schist layers (1) have evidently been thrown up from 

 below in a faulting of the conglomerate, as suggested by Professor 

 Shaler. Their probable position in the series is indicated by Jack- 

 son's sections 3 to be below his Grau Wacke series and above the 



1 Am. Naturalist, Vol. vi, p. 752. 



2 At the east end of Easton s Beach the conglomerate forms a synclinal, the dip 

 changing to E.SE. 5°-lQ o -20°. The next exposure is about 1-2 mile further east- 

 ward at Bliss' Cave, 5-8 of a mile back of the beach and on the north side of Easton's 

 Pond, where the conglomerate recurs with a dip of 30° W.NW. 



3 p. 80, 81, 111. 



