8 WEST AFRICAN FORESTS AND FORESTRY 
Two most valuable chapters on the Forests and botanical features 
of the Northern Provinces of Nigeria were written by Dr. J. M. 
Dalziel, to whom I owe grateful thanks for his encouragement in 
this work. 
My greatest thanks are due to Mr. C. E. Lane-Poole, Commissioner 
of Forests, Victoria, for the use of the list of the Sierra Leone trees. 
To M. Chevalier I return grateful thanks for his list of the 
Ivory Coast trees. 
For the constant and unfailing interest and devotion to the work 
of Miss Christina E. Lacy, acting as amanuensis, I beg to extend my 
heartfelt thanks. 
Further thanks are also due to my wife, who has lent not only 
practical assistance, but has been the mainspring of inspiration for 
the completion of this work. 
