and other instruments made by the accurate Dolland. After visiting the various trading posts of the Northwest Company, north of the 49th degree of latitude, he proceeded to the Mandan villages on the Missouri, and returned by way of the Assineboine to the Red River of the North which on the 7th of March, 1798, he reached. On the 14th he ascended the stream to the trading post in charge of Charles Chabouillier, and found it to be one minute and thirty seconds south of the 49th parallel of north latitude, and consequently within the territory of the United States.
The number of Ojibways who traded at this post was ninety-five, and on the basis of one man to a family of seven souls the whole population of the upper Red River Valley was 665, and at the Rainy River post 60 traded, representing a population of 420. On the 27th of March, he arrived at the Northwestern Company's post on the Red River in latitude 47° 54′ 21″ in charge of J. Baptiste Cadotte. From thence by way of Clear Water River he reached a portage to Red Lake River.
THOMPSON AT RED LAKE, MINNESOTA.
Ascending this stream for thirty-two miles, about the 15th of April he reached Red Lake, where he found only the old Ojibway chief She-she-she-pus-kut, and six lodges of Indians. On the 23d, he was at Turtle Lake, and on the 27th, found the most northern sources of the Mississippi River. From Turtle Lake he went to Red Cedar Lake, where there was a post of the Northwest Company, under one of its partners, John Sayer. Here 60 heads of families traded, and 420 was the estimated population of the vicinity. On the 6th of May he arrived at Sandy Lake, where the post was in charge of Mr. Bruské. Twenty heads of families brought their furs here, and about 294 was the whole population. From this point he proceeded to Lake Superior, and near the mouth of the St. Louis
