along Gravel river, [270]

on Mackenzie river below Fort Good Hope, [272]

from Keith bay to Smith bay, [275]

around Fort Franklin, [275]

timber growth, how to increase northern, [278]

Torch river, [129]

Transportation and industries in Peace river district, [171], [172]

Trees, range of the most important, [65], [66]

Trout Lake river, [70]

Tyrrell, Mr. J. Burr, exploratory trips of, [19], [20]