Iv 
next winter. In the meantime, however, the writer asks ornitho- 
logists and collectors to send in any other notes they may have on. 
the nesting habits of the /vimgzllde and following families, so 
that they may appear in their proper place in the concluding part 
of the work. An addendum will also be published with Part II] 
in which will be included such additional information as may 
come to me. 
An index and a complete bibliography of the authorities con- 
sulted will be embodied in Part ITI. 
JOHN MACOUN. 
Ottawa, April 22nd, 1903. 
