HONEYMAN ON GEOLOGY OF NEW BRUNSWICK. 455 



formed of fine blocks of a peculiar granite. The peculiarity arises 

 from the prevalence of large crystals of red feldspar in a base of 

 quartz, black mica, and red feldspar. 



NEPISIGUIT RIVER. 



We were urged to examine the copper mines on this river. 

 On our way we came to the I. C. R., about six miles above 

 Bathurst. Here the navvies were hard at work cutting into a deep 

 deposit of drift, consisting of the very coarsest material with over- 

 lying clays and sands. I now notice these by the way. 



The principal work here is the construction of even a grander 

 bridge than that of Tattagouche, over the Nepisiguit. The great 

 columns are of the porphyritic granite, already described. Here 

 they have the solid granite for their foundation. This granite is 

 spendidly exposed on the river, and it is quarried on its sides. 

 The granite band is exposed down the river as far as the Rough 

 Waters, about three miles above Bathurst. Proceeding about three 

 miles farther we cross the Pabineau river, and come to the Pabineau 

 Falls, on the Nepisiguit. 



The exposure of granite is extensive. The great riven rocks 

 rounded, with the great rush of waters dashing and splashing, are 

 indescribably striking. The mosquitoes came in clouds, marring 

 enjoyment. The granite is homogeneous. We had passed over the 

 porphyritic. I was interested in the pot-holes. These were hollowed 

 out in the solid granite by the revolving of boulders by the agency 

 of the rushing waters. Some of them are large, round, deep and 

 entire, with the rounded boulders at rest in the bottom ; others 

 surviving only in part, the revolving and excavating boulders 

 having worn their way out of the sides of the pots, to be hurried 

 away with the rushing waters. I examined them and collected spe- 

 cimens in spite of the mosquitoes. About two miles farther we had 

 passed over the band of granite. The bands of rocks succeeding 

 were examined on the side of the river opposite the Copper Mines. 

 Owing to a disaster — the maddening of our horses by swarms 

 of horse flies — their rushing into the Avater, smashing our carriage, 

 and a similar treatment of the horse and carriage of our guide, 



