R. L. SEXTON, M.D. 
J. R. EWAN, M.D. 
C. E. WOODSON. M.D. 
TELEPHONES METROPOLITAN 8-1042 
REPUBLIC 7-4600 
BY APPOINTMENT ONLY 
DRS. SEXTON, EWAN & WOODSON 
WASHINGTON MEDICAL BUILDING 
1801 EYE STREET, N.W. 
WASHINGTON 6, D. C. 
February 27, 1958 
Dr. Leonard Carmichael 
Secretary, Smithsonian Institution 
Washington 25, D.C. 
Dear Dr. Carmichael: 
Thank you for your kind note of February 5th in regard to the 1955 Congo 
Expedition. I have talked to Dr. Waldo Schmitt and have a schedule set for 
March 3rd to go over the motion picture footage . 
I was most anxious to have copies made of the 35 mm stereo stills and in 
talking with Dr. Schmitt found out that he has not yet catalogued or mounted 
them and will not have the time to do so until he returns from his planned trip. 
Thus, the schedule for the stereo work will be set for sometime after June, 1958. 
The only record kept by myself or my son during the expedition is enclosed 
herewith. The contents of this book were taken off carefully by my son and 
given to Dr. Schmitt immediately upon our return. A copy of this transcription 
together with a copy of a letter to Dr. Schmitt are enclosed herewith. 
Dr. Schmitt has asked that he be able to examine the original book. This 
can only imply that the transcription of the pen and ink entries was incorrect. 
I am sure that you will not find them so. The explanation in regard to this 
small handbook is, I feel, adequately explained in the letter. 
As you know, I am an amateur photographer and acted as assistant to my 
son, who was chief of the photographic department of the Walter Reed Hospital 
at the time he was loaned for the Congo Expedition. He is a professional camera 
man for movies, stills and every type of scientific photography. 
Since the expedition, he has been promoted to associate director of the 
photographic department of the Armed Forces Institute of Pathology, and as 
such is in administrative charge and direction of all technicians of that 
department. He has produced both sound and silent motion pictures in addition 
to other photographic research carried on at the AFIP . 
I feel that his position in the two laboratories he has directed qualifies 
