9 

 have been made from Dr. Warren's "Birds of Pennsylvania" 

 and Mr. Witmer Stone's later and more reliable "Birds of 

 Eastern Pennsylvania and New Jersey". In the main, however, 

 by far the larger amount of data is that gathered by the 

 author and his correspondents. Many of the records are 

 taken from the note books of the late Harry K. Jamison 

 now in the author's possession and never before published. 

 For much valuable aid in the way of notes, I desire 

 especially to thank the following of my friends, Mr. Thomas 

 H. Jackson of Chester County, Mr. R. B. Simpson of Warren, 

 Mr. Samuel S. Dickey of Waynesburg, Mr. J. Warren Jacobs of 

 Waynesburg, Mr. E. W. Campbell of Pittston, Mr. A. Benners 

 of Ambler, Mr. T. H. Gillen of Ambler, Mr. R. F. Miller of 

 Philadelphia, Mr. Witmer Stone of Philadelphia, Mr. David 

 Harrower of Swarthmore, and many others. Last but not least, 

 the author desires to thank Professor M. W. Eddy, head of 

 the Department of Zoology of the Pennsylvania State College 

 for the assistance and encouragement he has always so willing- 

 ly tendered. Concerning my own notes, I will say that they 

 cover a period of ten years and were gathered on field trips 

 made to practically every county of the state from Chester 

 to Greene on the south and from Pike to Erie on the north. 

 Of the ppecies known to nest in the state, it is with pardon- 

 able pride that I mention having personally found a larger 

 number actually nesting than any other ornithologist in the 

 state. 



