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Confident in his keenness of vision and in his familiarity with sea ice, he took the shorter air-line route, though its rough rubble-ice and shattered hummock-masses were sure to make greater demands on his physical strength and to require vigilance to avoid accidents.

Tupelo is about forty miles south of Rienzi, on an air-line.

It is not to be confused with Gordiou-kome, refounded as Juliopolis, a Bithynian town on a small tributary of the Sangarius, about 47 m. in an air-line N.W. of Gordium.

A second branched off from South Corinth, and leading in almost an air-line to Orange, passed near the western edge of Round Lake.

Three trails led southward from Jessup's Landing,—one in almost an air-line to Kinaquariones.