me. Not the least valuable part of the Catalogue is that which 

 includes the manuscript notes furnishied me by these observers 

 My only aim ha^ been to bring together all our available know- 

 ledge of the distribution and the breeding habits of bur Canadian 

 birds and if I have succeeded in presenting this inforrnation in a 

 forrii that will make it useful to ornithologists and bird-loveirs, my 

 labour has not been in vain. It will hot be difficult for future 

 workers to add to the matter here published or to correct the 

 errors which are unavoidable in a work- of this'kind. 



Mr. James M. Macoun has been of great assistance to me in the 

 preparation of the manuscript of the several parts for the press 

 and in the. revision of the proofs. The index was made by Miss 

 Marie C. Stewart, under my direction. 



JOHN MACOUN. 

 Ottawa, 7th Nov., 1904. 



ERRATA. 



E. A. Prebles should be E. A. Preble. 



Avenue, Man., should be Aweme, Man. 



On pages 266, 272 and 275, Mr. Hay should read Mr. Kay. 



The note credited to Mr. J. H. Fleming on page 408 should have 

 been placed under Icterius spurius on page 403. 



The name of the genus Carduelis was omitted near the bottom 

 of page 441 and should be inserted. 



