10 REPORT OF THE HARVARD AFRICAN EXPEDITION 
ville; Dr. Devos at Bukavu; Dr. Delafosse at Beni, and Dr. H. Lyndhurst 
Duke, Chairman of the Sleeping Sickness Commission at Entebbe, Uganda, — 
for hospitality and assistance in our medical investigations. 
To Mr. Robert N. Kennedy, Director of L. C. Gillespie & Sons in Kinshasa, 
for many courtesies and great assistance in Kinshasa; Manager Anruhn for 
courtesies at the Lever Brothers Oil Plantations at Alberta; Administrateur 
Daniels of the Belgian General Service in Beni, for assistance in connection with 
transportation; Captain Jeffrey Catchpole of Bunia, for much advice and as- 
sistance in hunting wild game and in performing autopsies upon wild animals; 
and to the White Fathers, for courtesies at Nyagezi, Lulenga, and Ben1. 
To Sir Alfred Sharpe of London; Lord Leverhulme; Mr. Robert Williams 
of the Union Miniére; C. W. Dresselhuys, Liberian Minister of London; and 
Mr. Leslie Cooper, General Manager of the Bank of British West Africa, — for 
courtesies and advice which facilitated our work in Africa. 
We wish also to express our indebtedness to Mr. L. C. Gillespie of New York, 
and to thank him for letters of introduction to the agents of L. C. Gillespie 
and Sons in the Belgian Congo; Mr. Edward Mallinckrodt, President of the 
Mallinckrodt Chemical Works of St. Louis, for a quantity of chemical and photo- 
graphic supplies; Messrs. Hynson, Westcott, and Dunning, for antimonial prepa- 
rations; Merck and Company of Philadelphia, for supplies of tryparsamide; the 
A. H. Metz Laboratories, Inc., of New York, for ampules of sodium thiosulphate; 
the Winthrop Chemical Company of New York, for ‘“‘ Bayer 205”’; and Messrs. 
Poulenc Fréres of Paris, for a supply of ‘“‘ Fourneau 309.’’ We also wish to thank 
Dr. A. Hamilton Rice, Vice-President of the American Geographical Society, 
Organizer and Director of its School of Geographical Surveying, and Mr. Weld 
Arnold, Fellow, American Geographical Society, for assistance in the prepara- 
tion of African maps; Professor Oakes Ames for assistance in determination of 
the species of orchids; and Mr. Hill at Kew for assistance in determining a 
portion of the flowering plants collected. 
I wish also to take this opportunity to express again my great appreciation 
to the other members of the Expedition for the very efficient work they have 
carried on, and for their entire cooperation and assistance throughout the Ex- 
pedition. 
I am.also grateful to the other collaborators in Part III of this Report, Dr. 
J. H. Sandground, Dr. N. A. Cobb, Dr. Thomas Barbour, Mr. A. Loveridge, 
Dr. Herbert Friedmann, Dr. C. T. Brues, Dr. C. P. Alexander, Dr. G. F. Ferris, 
Dr. Philip P. Calvert, and Mr. Nathan Banks, for their interest and the agsist- 
ance they have rendered, through their scientific contributions upon the material 
collected. 
Finally, I wish to thank Miss Catherine M. Casassa, Secretary of the Depart- 
ment of Tropical Medicine, for great assistance in connection with the prepara- 
tion of the manuscript and for the preparation of the index. 
I am particularly grateful to Mr. Loring Whitman, the photographer of the 
Expedition, who took most of the pictures herein reproduced. The majority of 
the photographs referred to in the botanical section were taken by Dr. David 
