August 2, 1950 
Mr. Ratibor Hartmann, 
Gorgas Memorial Laboratory, 
Apartado 1252, 
Panama, Rep. de Panama. 
Dear Ratibor: 
I was pleased to have your letter some time ago and to 
learn of your further travels. I went to Sweden myself the first of 
June and was gone until the 20th, in attendance at the scientific 
meetings. The flight across was quite interesting and not at all 
difficult. I left the airport in New York at.11 o'clock one morning, 
and after stopping in Newfoundland, Scotland and Norway, reached 
Stockholm Sweden about 11: 00 the next day. 
Sweden was a highly interesting country and in addition 
to the meetings, I had opportunity to get out into the country in 
several places and to see the country life and something of the 
living birds though I was not able to do any collecting. After two 
weeks, I found that 1 could understand a fair amount of the conver¬ 
sation around me though the pronunciation of spoken Swedish is 
something that it would take months to acquire. However, 1 had 
no special difficulties. My only specimen from this trip was from 
a species of crow known as the Jack-daw, one of which I found 
dead in the street one day. This I made into a study skin and brought 
home with me. 
Do you remember the little Yellow-breasted Pepper 
Shrikes, Cyclarhis, that I collected at Maje and across the bay from 
Chiman? These proved to be a nice new form that I shall describe 
presently. In the big perdiz I find that one specimen that I shot at 
the top of the ridge above our camp at Quebrada Cauchero belongs to 
the darker race of eastern Panama, while those lower down near the 
camp are the form that was found all along the Pacific side of the 
Republic. 
As you see, I am working on these collections and finding 
numerous interesting things. 
With this I send you a few photos that may be interesting 
