G. W. Hawes—Albany, N. H., Granite, ete. 21 
Art. Il.—The Albany Granite, New Hampshire, and its Con- 
tact Phenomena ; by GEORGE W. Hawes, New Haven. 
In the studies that have been directed to the end of discov- 
ering the nature and origin of our great granitic masses, the 
contact phenomena have received but little attention. The 
application elsewhere of the modern methods of lithological 
research to the rocks upon the limits of granitic masses has, 
owever, been fruitful in developing facts of geological inter- 
est. ‘The study which I present indicates that no more striking 
phenomena have been observed anywhere than those which 
are found upon the boundaries of one of the New Hampshire 
granitic masses. ese phenomena have additional interest 
since they occur in a region of highly crystalline schists, which 
usually are not susceptible to influences of this nature. In 
the Vosges, for example, the granites, which have produced 
the most marked and wide-reaching effects upon clay slates, 
have had no influence upon the crystalline schists which they 
have intersected.* As the New Hampshire granite here 
considered exhibits very striking modifications in character, 
dependent upon the neighborhood of the contact, and as a 
spot was found where the arrangement of the rocks is favor- 
able for a careful consideration of the effects of the contact 
both upon the schists and the granite, I have investigated 
these rocks with a view of presenting this study as a contribu- 
tion to White Mountain Geology. 
The line of contact between the Albany granite and an area 
of argillitic mica schist crosses Mt. Willard in the Crawford 
notch. The normal rocks with their contact modifications are 
familiar to many of our geologists. The beauty of the natural 
scenery, combined with the geological interest, has attracted 
many to this spot, and these rocks have accordingly had fre- 
quent mention. For the opinions in regard to the nature and 
origin of the granites at this point, and the interpretation of 
the effects that are due to the contact, I refer to the second 
* H. Rosenbusch, Abhandlungen zur geologischen Special Karte von Elsass- 
Lothringen, Bd. I, Heft II, p. 89. 
