504 : The American Naturalist. [June, 
On the fourth day Porcupine Rapids was reached, a distance of fifty- 
seven miles from the mouth of the river. Here wasa notable increase in 
the size of the firs and spruces. Deposits of magnetic iron ore were ob- 
served on the banks of the river. The next day the travellers passed 
through a widening of the river known as Gull Lake. This is a favorite 
resort of the Canada goose and its waters contain large numbers of 
white-fish, pickerel and suckers. Above the lake the valley of the 
river contracts gradually ; the sandy terraces disappear, and sloping 
banks, strewn with erratics, are encountered for many miles. The Gull 
Island, Horseshoe, Minnipi and Mouni Rapids were conquered in turn. 
In the swollen condition of the river, the stfuggle with these wild 
rapids was long and stubborn. Mouni Rapids extend over a longer 
distance than any of the others, and aneroid readings show a greater 
drop here in the bed of the river than at any other point. It was here 
that the travellers met with an awkward adventure, which Mr. Bryant 
relates in the following graphic manner. à 
“ We were approaching a rocky point past which the water dashed 
with angry violence. It was our custom on reaching such a place to 
first detach the canoe, and then shove out the boat obliquely from the 
still water to allow her bow to fairly meet the swiftercurrent. On this 
occasion, while Montague and I, facing up stream were waiting on the 
bank above for the signal to advance, the boat, through some careless- 
ness, was pushed out from the quiet eddy squarely into the swift water. 
The full force of the torrent struck her abeam, and away she swept 
down the stream like a thing possessed. Taken unawares, no time was 
given to throw off the leather straps from our shoulders, and instantly 
we were thrown from our feet and dragged over the rocks into the 
river by the merciless strength of the flood. Most fort unately for me, 
the circular strap slipped over my head as I was being dragged through 
the water. Montague’s also released itself, and the runaway sped down 
stream a quarter of a mile before it was stopped. On clambering up 
the bank I found Montague stunned and bleeding from a scalp wound. 
Aside from some abrasions of the skin, I was none the worse for my 
shaking up, and after a brief delay Montague revived and we resumed 
our ‘ tow-path’ exercise.” 
Lake Wanakopow was reached August 20th. This romantic sheet 
of water, less than a mile in width but 35 miles in length, is surrounded 
by low mountains of granite and gneiss, from whose cliffs and w 
headlands cascades leap into the lake, their silvery outlines contrast- 
ing with the environment of dark evergreen foliage. A sounding taken 
near the middle shows a depth of four hundred and six feet. Mr. 
