76+ 



THE POPULAR SCIENCE MONTHLY, 



^UNIVERSITY OF 

 WISCONSIN 



Fig. 3. 



Tliree successive flights of pigeon No. f. 



First flKjht, May 29. 



.^_. Second " June 5. 



Third " JuneSt 



the country. About fifty such, tracings were taken, of whicli a 

 few of the more instructive are reproduced below. 



A few days of freedom were allowed, in order that the birds 

 might more exactly locate their loft ; then all were again confined 



