CHICAGO ACADEMY OF SCIENCES. 
269 
Sailing from St. Michael's in September, Messrs. Pease and 
Bannister, who had passed the greater portion of the previous 
season at that point, accompanied the remains of Major Ken- 
nicott to San Francisco. 
The writer and party started in boats from St. Michael's in 
October, reached the mouth of the Unalaklik River, crossed 
the portage to the Yukon, and reached Nulato about December 
1, 1866. The writer and Mr. Whymper, the artist of the 
expedition, remained all winter at Nulato. In the spring, 
taking a boat and three Indians, they proceeded up the river 
to Fort Yukon, a post of the Hudson's Bay Company, situated 
on the western side of the boundary. Here they were hospit- 
ably received by Mr. McDougal ; and after a few days were 
joined by the party which had preceded them, and returned 
down the river to the sea, and thence to St. Michael's. 
Here, most unexpectedly, the intelligence was received of the 
termination of the enterprise. The members of the party were 
all to return home. 
Having previously decided to finish the zoological and geo- 
logical reconnoissance of the Yukon River, and as the lower 
part of the river had been descended so rapidly that there had 
been no opportunity of examining the rocks critically, and but 
little for making collections there, the writer decided to remain 
in the country, and continue the explorations alone and at his 
own expense. 
Having made an arrangement by which this was eftected, 
the ships having left St. Michael's, the writer proceeded with 
a boat, and the assistance of the Esquimos, to Unalaklik. 
Here he remained until November, makiuo^ various seoloirical 
explorations along the coast. Crossing the portage in Decem- 
ber, he arrived at Nulato, and proceeded to examine the 
country to the east of that point, near the so-called Innoko 
River. Afterward, dog-feed giving out, he was unable to pro- 
ceed, as he had intended, to Kotzebue Sound. Several small 
trips among the mountains west of Nulato were made during 
the winter ; and in March, notwithstanding a severe attack of 
illness, he proceeded to St. Michael's. 
Returning to Nulato, and carrying a boat over the portage, 
in the month of June, with three Indians, the writer descended 
