NARRATIVE. 125 



globe. The woods and rocks are everywhere the same, or similar. 

 The rivers and the islands are counterparts of each other. The very 

 fishes, although kept there by no material barrier, are yet different 

 from those of the other lakes. Where differences exist between the 

 various parts, they are broad and gradual. 



Aug. IQth, 11th and 18th. — Principally employed in arranging 

 and packing specimens. Prof. Agassiz' collection alone occupied 

 four barrels and twelve boxes, mostly of large size. 



In the meantime our party gradually dispersed. Some took the 

 steamer for Mackinaw ; others were to remain for a few days at the 

 Sault, whilst another party determined to take the English steamer 

 " Gore," to Sturgeon Bay, and return home through Upper Canada. 



Aug. 19th. — We started at eight o'clock A.M. in the " Gore," a 

 very well-arranged and comfortable boat. Our first move was to 

 cross the river, where we took in the (English) Bishop of Toronto, 

 with his chaplain and another clergyman. We understood they had 

 been consecrating a church on the English side. 



The scenery below the Sault is pleasing, and in many respects like 

 that we had just left, as if the influence of the Great Lake extended 

 beyond its shores. The trees seemed to be of the same species, and 

 there was the same abundance of wooded islands and islets. The 

 Professor observed that the scratches on the rocks were not parallel 

 to the valley, but have a constant north and south direction. The 

 high land forming the sides of the valley retreats gradually on each 

 side, leaving a wide expanse of low shores which would be inundated 

 by a slight elevation of the water. For some distance below the 

 Sault the river is shallow, and the bottom distinctly visible, showing 

 ripple-marks in many places which are constantly covered by several 

 feet of water. 



About three o'clock P.M., we reached the Bruce copper-mine, to 

 the northward of St. Joseph's Island. The long wooden pier to 

 which we moored was heaped with the most brilliant ore of the kinds 

 the miners call " horseflesh" and " peacock ore," having every hue 

 of blue, purple and golden. The first question the agent asked us 

 when we landed, was, whether we had a medical man with us, for 

 two of his men had just been injured by a premature explosion. For- 

 tunately, there were two of the profession in our party, not to count 



