The Abyssinian Plateau is given in detail in [Fig. 92]. Notice that it lowers gradually towards the south, but abruptly towards the north and that its surface is broken into many plateaus and deeply cut river beds by tributaries to the Nile.

92
MAP OF THE ABYSSINIAN PLATEAU.

BOOKS OF REFERENCE.

The following books of reference may be found useful in the study of geography as a preparation for map drawing: