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Page:Popular Science Monthly Volume 44.djvu/782

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764
THE POPULAR SCIENCE MONTHLY.
PSM V44 D782 Three successive flights of pigeon no 2.jpg
Fig. 3.
Three successive flights of pigeon No. 2.

———— First flight, May 29.
_._._._._ Second"June 5.

. . . . . . . . Third"June 21.

the country. About fifty such, tracings were taken, of which 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