PREFACE. 
Vll 
kind consideration of the public, to whom he offers liis httle work 
only as an humble substitute for one which would have been far 
better arranged ; trusting that in his total want of pretension and 
ready admission of its defects, it may meet the general indulgence, 
which he can claim on no other account. 
The author is indebted to the kindness of the Rev. W. Buck- 
land, Professor of Mineralogy at Oxford, for the interesting paper 
on the geology of the kingdom of Fezzan. 
