562 HENRY B. KUMMEL 
probably was not great. It is not believed that there are other 
faults in the area examined whose throw is even one-tenth that of 
the two great ones. I have alluded elsewhere to the possibility 
of faults along the northwestern border. Two are shown upon the 
map and others are believed to exist, but are not mapped. The 
recurving horn of the Second Watchung Mountain is quite cer- 
tainly separated from the crystallines bya fault. Further inves- 
tigation of these points together with the study of the region not 
yet examined, is now in progress. 
Henry B. KUMMEL. 
Lewis INSTITUTE, Chicago. 
