OCCURRENCE IN THE FAR NORTHWEST. B73) 
river, and a few years ago some of their remains were purchased for the 
museum of the Geological Survey at Ottawa from Mr F. Mercier, who 
had brought them from some place on this river within the Alaskan 
boundary. The late Mr Robert Campbell, of the Hudson’s Bay Com- 
pany’s service, with whom I have conversed on the subject, told me that 
he had found elephant bones in a river bank near the junction of the 
Lewis and Pelly to form the Yukon. One of these bones was sent to 
England and identified by Sir John Richardson as belonging to Hlephas 
primigenius (Blumenbach). The late Mr Richard Hardisty and the offi- 
cers of the Hudson’s Bay Company have informed me that in passing 
along Rat river, a small tributary of the McKenzie on the west side of 
its delta, the Bell river, a branch of the Porcupine, and along this stream 
itself they have seen in various places bones of elephants projecting from 
the clay or other superficial deposits forming the banks. Mr Hardisty 
said that in the vicinity of these rivers he had frequently seen skulls of 
the musk-ox (often called * buffalo” in the far north) lying on the sur- 
face of the ground, mostly in swamps and partly covered with moss. 
‘This animal is not now found living west of the McKenzie river, al- 
though it is quite common over the great region to the eastward of it as 
far as Hudson bay and thence across the large islands lying to the north- 
eastward, which carry its range to northern Greenland. Its desertion of 
the country west of the McKenzie river is one of those instances of the 
long-period or the final regional migrations of the larger mammals which 
have not yet been satisfactorily accounted for. 
The late venerable Archdeacon R. McDonald, whom the writer has 
had the pleasure of meeting in the McKenzie valley, some years ago pre- 
sented to the British Museum bones of the mammoth, the horse, and the 
musk-ox. I have obtained from York factory, on the west side of Hud- 
son bay, through the kindness of Dr Percy Mathews, part of the skull of 
a horse which was found there half embedded in the soil ; but this dis- 
covery may have no geological significance, as it possibly belonged to 
a domestic horse, although I could not hear of any of these animals 
having ever been landed at this place, although cattle for the Red River 
settlement and for local use have been imported to this establishment 
from England. 
Mr William Ogilvie obtained during the present year two horns of the 
existing bison (which I have seen) from the auriferous gravels of Bonanza 
and Eldorado creeks, in the Klondike district of the Yukon near the 
intersection of the one hundred and forty-first meridian. From the same 
gravels he also obtained some coniferous wood and part of a skull and 
