HBiK&i--22lSa» A side channel of 

 the Rio Negro^ Haunt of ducks, 

 grebes and coots» General Roca, 

 R£o Hegro, Argentina^ 



Noveiiiber 23, 1920. 



B*3* 22183* A side channel 

 of the Mo Negro* General Roca, 

 Rxo Negro, Argentina* 

 - November 23, 1920* 



r 



14^» ']^ical siaall ranch of 

 northern Patagonia, near General 

 Roca^ Argentina* 



November 23, 1920. 



