Geographical Notices. 309 
_ Magorge across such thick ribs of rocks as must surely e 
ie 0 gil to read off a clear lesson, whilst an ole ae 
pee pper part of the Tchadda to the sources of the Calabar, on 
_ te one hand, and to the heights of Aed Hamarrawa on the 
£ er, will also afford an instructive parallel traverse of no less 
= sib Tegion are noticed by the author. The volume contains 
Ga Mags profile of the country between the mouths of the 
-trati wats and the Takkasi valley, a map and some other illus- 
of Zanzibar—Major Burton, who is 
ibar, has been heard from as far in 
rica. D 
rolume entitled “Skizze der volkswirthschaftlichen 
