Dr. A. W. ..3. 
to time as needs may arise. As the region to be covered in your 
work is remote, and as we have only general knowledge of local con¬ 
ditions, it will be necessary for you to formulate in large part 
your itinerary after you reach Buenos Aires and consult with officials 
there. In general, it may be well to carry on investigations in parts 
of the province of Buenos Aires that are suitable for our birds. It 
will, also, be advisable to investigate conditions in the northern 
part of Argentina, and in Paraguay and Uruguay, and also to visit a 
large marshy area known as the Chaco in northwestern Argentina. Some 
work should be done in the lake region of western Argentina, and studies 
should be carried on as far south in Patagonia as time and funds permit. 
Special efforts should be made to band as many Golden Plover, 
Black-bellied Plover, and Yellow-legs as possible, with a view to 
securing return records of these birds to the United States. Possibly 
the aid of native bird trappers may be secured,which would enable you 
to band a considerably larger number of birds than would be possible for you 
to capture alone. 
In returning to the United States it may be well to proceed by 
way of Valparaiso, Chile, and to occupy a short time in observations 
along the coast in that vicinity. 
Upon completion of this work you will return to V/ashington, D. C., 
your official station. 
With best wishes for the successful prosecution of this work, 
I am. 
Very truly yours. 
