MUSEUM OF COMPARATIVE ZOOLOGY. 



201 



Jackson's notes of his trip to Ktaadn contain only the following brief 

 statements respecting the rocks m situ which he saw on the waylo and 

 from the mountain. First, the one previously quoted in full, that Joe 

 Merry Mountain "is composed of granite."* Second, that, "leaving our 

 boats, we walked to Pock-wockamus Falls, where the river rushes over a 

 ledge of granite." f Third, " All the rocks at Quakish Lake t are 

 granite, and the water falls over huge bowlders of that rock/' § 



Dr. Jackson's assistant, Mr. J. T. Hodge, had preceded him by three 

 months in the passage up the river. He speaks of but one of the two 

 hills I have described as lying west of Katcpskonegan Dead-water, 

 saying: ''On its western side is a high' hill of granite, covered with 

 immense loose blocks of the same rock, piled one upon the other almost 

 perpcndiyulaj-Iy." He adds: "Two miles above [a fall over "loose 

 granite rocks"], we were obliged to carry by again on the western side. 

 The opposite bank is formed of granite .... lying in the best position 

 and form for working." Continuing, he remarks: "Not far above 

 this wc arrived at a fifth portage, which is called the Pauquakaraus [in 

 fact Aboljacarmegus]. .... At the head of this portage, the bank is a 

 smooth ledge of granite." (| 



Mr. J. C. Houghton, who for the year 18G1 was Hitchcock's assistant, 

 furnished for his report the following facts. In the account of a trip 

 from Moosehead Lake down the Penobscot to Ktaadn and beyond, he 

 notes that at the fourth and fifth portages " the river falls over ledges 

 of fine granite." ir Respecting the fixed rocks upon the river and lakes 

 below, ho makes no further remark than tliat " near the outlet of North 

 Twin Lake is the southeast limit of the granite, and the quartz rock 

 [which he had last seen between Chcsuncook and Eipogenus Lakes] 

 again appears " "^^ 





Elsewhere Mr. Houghton mingles facts and conjectures. Having vis- 

 ited the " Katahdin Iron Works," ft which are situated in the township 

 that corners upon Brownsville at the northwest, he proceeded twelve 



* Second Report on Geology of Public Lands, p. 11. 

 t Ibid., p. 14. 



t Quakiah Lake on Hitchcock's map is placed ontsidc of the ginnite district, the 

 last granite in place being now known to occur a little below North Twin Lake, Ibove 

 Quakish. 



§ Ibid., p. 20. II Ibid., p. 63. 



IF Prel. Eep. Nat. Hist, and Geol. of Maine, p. 440. 

 ** Ibi<l., p. 440. 



ft A confusing misnomer, since they arc situated full thirty miles in a straight hne ■ 

 from the mountain whose name they bear. 



■II: 



