202 



PASSENGER-PIGEONS. 



procession extends, teeming everywhere, equally crowded. 4n 

 hour passes, and they rather increase in numbers and rapidity 

 of llight. The leaders of this vast body sometimes vary their 



A I'LOl'D OF PIGEONS. 



course, now forming a large band of more than a mile in 

 diameter ; those behind tracing the exact route of their pre- 



