2 
Ths processing of my photographs is another matter 
of some concern, I have worked out inspection techniques of 
developing black and white negatives that are exactly suited 
to the" kind of photography I pursue. It isn’t too tricky, 
but it took a long time until I got exactly what I wanted. 
Therefore, I would want to process the black and whites I take 
myself, and not rely upon another darkroom technician. With 
regard to color transparencies, I have established over the 
last few years a highly satisfactory relationship with the 
color laboroatory that does some of the color research work 
for duPont, and their pictorial advertising work as well. I 
shoot odd exposures that any conventional color lab would 
butcher, but these people are well accustomed to my peculiar- 
ities. I would want to have my color work done there. 
As far as ordering films is concerned, I will let 
you know about the kind and quantity soon. Emulsions differ 
slightly, at least in color film, even in films of the same 
type and manufacture. To obtain a consistent color balance, 
it is necessary that all film be of one emulsion batch (iden- 
tified by the serial number on the carton). Of course, a 
number of different types of film need to be obtained. 
Essentially then: (a) can we share Ide ntic al original 
photographs, both color and black and white; can I see to 
"the processing of all films I take? 
I am planning to bring a small l6mm movie camera 
along for narrative purposes later. ' Of course a duplicate 
print will be perfectly all right wherjever you can provide one 
for me, or lather, for the school, since it will be a school 
camera. 
I believe I understand about the films taken last 
year, and the reason for your emphasis this year that you must 
have originals. With this I agree, and hope that my suggestions 
above will be acceptable. I have mentioned to Carl your con- 
cern over the movie film, and I believe he will send it on to 
you shortly. 
As some compensation to the school for being allowed 
to go on the expedition, I would like to provide a representative 
collection of tropical forms for our ovm museum collection. I 
am planning to have one or two stout cases constructed for 
bott2$ and vials which will go to you after the trip for in- 
spection and removal of those specimens you feel the Smithsonian 
should retain, after which the cases can be shipped to ms. Is 
this satisfactory? 
Yesterday Dick Darsie mentioned something about the 
electricity aboard the Caribee. . . this also is a major concern 
of mine. I want to take along elec|ronic flash equipment which 
runs off the usual household current. If such is not available, 
I will try to have a rectifier of some sort built as soon as I 
know the specifications of shipboard current. Could you let 
