117 [237] 



Vtl. PRAIRIE DU CHIEN AMERICAN FUR COMPANY'S HOUSE. 



h. in. S. 



1. Longitude, the mean of 3 sets, or 34 lunar distances 



E.and W. j> • - . .64 36.57 



2. Chronometric longitude, inferred from St. Louis - 6 4 42.84 



3. Chronometric longitude, inferred from St. Peter's - 6 4 27.25 



Mean - - - - 6 4 35.5t 



Lonffilude in arc - - - 93° 5' 53".25 



Vm. TRAVERSE DES SIOUX AMERICAN FUR COMPANY S HOUSE. 



h. m, s. 



1. Longitude, the mean of 3 sets, or 36 distances from 



the moon to the sun - - - - 6 15 51.73 



2. Chronometric longitude, inferred from St. Peter's - 6 15 45.10 



3. Chronometric longitude, deduced from the occullation 



of a Virgi?iis, dit the Red Pipestone Quarry - - 6 15 55.57 



Mean - - - - 6 15 50.80 



Longitude in arc - - - 93° 57' 42".0 



IX. MOUTH OF SANDY LAKE RIVER — AMERICAN FUR COMPANY S HOUSE. 



h. m. S. 



1. Longitude, mean of 2 sets, or 23 distances from the 



moon to the sun, taken in the morning - - 6 12 48.S 



2. Mean of 2 sets, or 25 distances from the moon to the 



sun, taken in the afternoon - - - - 6 12 28.2 



Mean - - - - 6 12 38.0 



Longitude in arc - - - 93° 9' 37".5 



x. sources op the mississippi river station at itasca lake, 



Schoolcraft's island. 



h. m. s. 



1. Longitude, mean of 2 sets, or 24 lunar distances E. of 



the moon - - - - - - 6 20 22.15 



2. Mean of 2 sets, or 24 lunar distances W, of the moon, 



taken on the same evening: with the former - - 6 19 53.60 



Mean - - - - 6 20 7.87 



Longitude in arc ... 95° 1' 58".0 



