BIBLIOGRAPHY 



BIRDS OF PENNSYLVANIA AND NEW JERSEY. 



The region covered by the present list, and more especially the 

 immediate vicinity of" Philadelphia, lias probably had connected with 

 it the names of more celebrated ornithologists than any other section 

 of our country. 



Alexander Wilson on the banks of the Schuylkill and on the 

 Pennypack, and Audubon on the Perkiomen, made their first ac- 

 quaintance with our birds, and doubtless secured the first specimens 

 of many of their new species, in spots which are still the favorite 

 haunts of the ornithologists of to-day. In the Cumberland Valley 

 some miles to the westward, but still within the scope of the present 

 list, Prof. Baird also pursued his early ornithological studies, and 

 prepared the first extensive collection of bird skins made in this 

 country which afterwards formed the nucleus of the now famous 

 North American study collection of the U. S. National Museum. 



The magnificent collection of birds j)urchased and de[iosited in the 

 Academy of Natural Sciences of Pliiladelphia by Dr. Tlios. B. Wil- 

 son, about 1845, drew thither many ornithologists, and made Phila- 

 delphia for a number of years the ornithological centre of tlie coun- 

 try. We find associated with the collection and publications of the 

 Academy the names of Peale, Harris, Heermann, Cassin, Wood- 

 house, Gambel, McCall, TurnbuU, etc., many of whom evidently 

 devoted time to the study of the birds of the surrounding country as 

 well as to the specimens in the Museum. 



After the death of John Cassin in 1869 ornithology at Philadel- 

 phia seems to have come to a standstill, and lor several years we find 

 no evidence of ornithological study in this vicinity. With the [)ubli- 



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