As promised in a prefatory note to the second part of the 
Catalogue of Canadian Birds, Part III of this work is issued the 
present autumn. The original intention in preparing a Catalogue 
of Canadian Birds was to complete the work in two parts, but the 
large amount of valuable information, which had become available 
by the time Part II was finished, rendered a third part necessary. 
This part entirely completes the work for the present ; but the 
additional knowledge of our birds which will no doubt accumulate 
in the next few years may necessitate further publications on this 
subject in the future. 
; ROBERT BELL. 
GEOLOGICAL SURVEY, OTTAWA, 
November 9, 1804. 
