CABLE ADDRESS - MUSEUM, CHICAGO 
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Field Museum of Natural History 
ROOSEVELT ROAD AND LAKE MICHIGAN 
Chicago 
March 3, 1937. 
Dear Mr, Schweinfurth: 
You are quite right in removing 
from the Costa Rican orchid collections any material that 
you may desire to retain. This applies to all the ma¬ 
terial sent you. Some of the specimens are unicates, 
some are duplicates, but in any case you should have the 
right to remove desirable material, in consideration of 
the great amount of labor involved in making the deter¬ 
minations. I have retained here some of the unicates 
in other families, at least in the case of new species, 
and Prof. Valerio understands that this will be done. It 
would, however, be desirable to have a list of unicates 
retained, so that they may be able to enter the names (noth¬ 
ing more is needed) in their lists. 
So do not hesitate to retain any material that you 
wish, and be especially free about retaining material 
when a number can be divided. It is only right that you 
should have the preference in this respect. 
If it complicates your work at all, do not return at 
present the named specimens; but if it does not, their 
return will enable their addition to the Flora, which I 
hope to submit for printing before long. It is marked for 
the printer up to the Anonaceae, and I hope to include 
even more in the first instalment. If some of the orchid 
names are available later, they can be added when I send 
you the proofs, or even at the end of the volume, where 
doubtless there will be some addenda. 
Sincerely yours, 
Paul C. Standley. 
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All of ~he lots are of equal importance so far as 
final determinations are concerned, and it is, of course, 
more practical to treat them as a single collection. 
V, ~ 
ADDRESS ALL CORRESPONDENCE, PUBLICATIONS AND PACKAGES 
TO FIELD MUSEUM OF NATURAL HISTORY, CHICAGO, U. S. A. 
