Introductory The observations embodied in this paper were made along the route of the Uganda Railway during the months of July and August, 1910. Somewhat extended journeys on foot were made in each of the physiographic provinces of the area. No long trips were taken away from the railroad, however, nor were they possible except by organizing a safari, a method of travel beyond the author’s means. Longer trips into more remote regions would have brought out many added details and doubtless some modification of statement, but it is not -believed that they would have changed materially the conclusions of this paper.
The area to be discussed in the following pages is a portion of the great plateau of central Africa. A brief summary of the conditions obtaining in this relatively unknown region should be given at the outset, that there may be a clear understanding of the plateau and of
- Received 29 January 1912.
- © 1912 Geological Society of America