204 STRATIGRAPHICAL GEOLOGY. 



Dome is the White Mountain gneiss, and the dip is N. 15" E. 40°. The ridge north, 

 beginning at Bald Knob and ending at Noon Peak, is granite. Mt. Waternoo, the 

 highest point in the Campton mountains, is White Mountain gneiss, and dips N. 20° 

 W. 35°. On Kimball hill in Whitefield, north-east of Rowland's observatory, there is 

 a band of intrusive granite that contains fragments of schist often a foot or more in 

 length. 



In Granby, Vt., east of Moose river and a mile north of the road to Victory, there 

 is also intrusive granite containing fragments of schist with staurolite. 



Extension of the White Mountain Rocks into Maine. 



In 1873 Mr. Huntington and myself presented to the American Asso- 

 ciation for the Advancement of Science a joint paper upon the geology 

 of the north-west part of Maine, which was printed in the proceedings of 

 the Portland meeting. Its object was to show the relation of the New 

 Hampshire rocks, in their north-easterly extension, to the fossiliferous 

 formations approaching as far as the low regions of the Gulf St. Law- 

 rence. I will state the most important of the facts published by us, and 

 the conclusions drawn from them at that time. The facts are embodied 

 in our map showing the relations of the geology of New Hampshire to 

 that of the adjoining territory. [Plate I.] 



The country alluded to is bounded on the east by Moosehead lake, on the north by 

 the west branch of the Penobscot river, on the west by the water-shed between the 

 Kennebec and Chaudifere rivers, including the neighborhood of Lake Megantic, on the 

 south and south-west by the mountain range of which Mt. Bigelow is the culminating 

 peak. 



The fossiliferous rocks of this section were first pointed out by Dr. Jackson, who 

 studied them particularly in the vicinity of Parlin pond.* He mentions a locality, half 

 a mile north of Parlin pond, where he discovered a great number and variety of impres- 

 sions in a bed of graywacke. He speaks of them as the most perfect casts of marine 

 fossils that he had ever seen. He seems to have been led to the discovery by the 

 numerous boulders that have been scattered from this formation as far south as the 

 outer island of Penobscot bay in the mouth of the Kennebec. Dr. Jackson passed 

 over Moosehead lake ; then he followed Moose river up to the Canada road, which is 

 some thirty miles from the lake ; thence he went southward, after he had explored the 

 country northward to the Canada line. In passing up Moose river he crossed the fos- 

 siliferous strata diagonally. He noticed obscure fossils in the rocks at Lake Brassua, 

 and these are the only fossils he observed on Moose river, or on the lakes that are 

 expansions of this stream. 



* Third Annual Report upon the Geology of Maine, p. 44, 1839. 



