1879.] BIRDS FROM ANTIOQ.UIA. 489 



Antioquia lies on the left bank of the Cauca, some eight or ten 

 miles off. 



Cauca. The locality thus indicated is probably intended for the 

 valley of the Cauca, which Mr. Salmon crossed on his routes to 

 Antioquia, and on his expeditions to Concordia and Jerico. 



Concordia is some 10 miles off the left bank of the Cauca, at an 

 elevation of 6*000 feet, and about 50 miles south-west of Medellin. 



Envigado is near the sources of the Rio Poru, a confluent of the 

 Cauca, and lies 12 miles south of Medellin, at an altitude of 5500 

 feet. 



Frontino is on the upper waters of the Sucio, which flows into the 

 Atrato, some 30 or 40 miles west of Antioquia city. 



Jerico is on the left bank of the Cauca, south of Medellin. Here 

 the splendid new Tanager Chlorochrysa nitidissima was obtained. 



Medellin, the capital of the State of Antioquia, is situated on the 

 Rio Poru, a branch of the Cauca. Its elevation is about 5000 

 feet. 



Pocune. Rio Pocune is near Remedios, and is a small confluent 

 of the Rio Vagre, which runs into the Neche and so into the Poru. 

 Mr. Salmon's collecting-station here was at an altitude of about 1970 

 feet. 



Remedios (elevation 2360 feet) is far to the north-east of Medellin, 

 and is on the upper source of the Ite*, a confluent of the Magdalena. 



Retiro lies 25 miles south of Medellin, beyond Envigado, at an 

 elevation of 8000 feet. 



Rio Neche or Nichi is a confluent of the Rio Poru, which it enters 

 at Dos Bocas. Mr. Salmon's collections were made a few miles 

 above the confluence. 



Rio Negro is a town on the river of the same name, which runs 

 into the Magdalena. This town is some 25 miles east of Medellin. 



Sta. Elena we have not been able to find marked in de Greiff's 

 map. But we ascertain from Mosquera's ' Diccionario geografico ' 

 that it is "a Quebrada" between 5° and 6° N. lat. It is therefore 

 probably on the right bank of the Cauca, somewhere between Retiro 

 and Jerico. 



San Miguel is also not marked in the map. General Mosquera 

 gives five places of this name in the State of Antioquia. 



III. Short Summary of preceding Authorities on the 

 Brids of Colombia. 



Our knowledge of the ornithology of this part of South 

 America is mainly due to the large collections of bird-skins made 

 since 1840 by native collectors in the vicinity of Bogota, the capital 

 of the Confederation, and imported into Europe as merchandise. 

 These skins are of very peculiar "make," and are well known to 

 all ornithologists. 



The circumstances under which these skins are collected, and a 

 full list of the species contained in them as far as they were known 



