442 



THE ZOOLOGIST. 



does not amount to half that speed, and rarely exceeds 36 miles 

 per hour.* 



In connection with this subject, we would direct attention to 

 some statistics furnished by Capt. C. T. Keene to the 'Homing 

 News,' and published in the issue of that journal for March 23rd, 

 1894; and also to some remarks by M. Felix Rodenbach, in 

 his work on Experimental and Scientific Colombophilism. 



Capt. Keene writes: — "In his work on Natural Inheritance, 

 Mr. Galton explains a graphical method of ' showing how to 



Table I. 



Velocity Yards per Minute. 



3207 old birds /lying over 90 miles (average 141 miles). 









Percentages. 









i 



Velocity. 



No. of cases 



No. of cases 



Sums from 



Yds. per min. 



observed. 



observed. 



the beginning 



Under 500 



22 



•6 



•6 



600 



43 



1-3 



1-9 



700 



164 



5-3 



7*2 



800 



284 



8-8 



16- 



900 



598 



18-6 



34-6 



„ 1000 



645 



20-3 



54-9 



„ 1100 



683 



21-3 



76-2 



„ 1200 



396 



12-3 



85-5 



„ 1300 



132 



4-3 



92-8 



„ 1400 



120 



3-6 



96-4 



Over 1400 



120 



3-6 



100 



Total 



3207 



100 







Tabi 



^E II. 





2914 young 



birds /lying in re 



ices between 50 and 



100 miles. 



Under 500 



107 



3-6 



3-6 





600 



154 



5-3 



8-9 





700 



297 



101 



19-0 





800 



543 



18-6 



37-6 





900 



684 



23-4 



61-0 





, 1000 



415 



14-2 



75-2 





, 1100 



284 



93 



84-5 





, 1200 



238 



9*1 



93-6 





, 1300 



114 



3-8 



97-4 





, 1400 



49 



1-6 



99 



Ove 



r 1400 



29 



1 



100 



Total 



2914 



100 



determine the grade of an individual among his fellows in respect 

 to any particular faculty.' I have thought it might interest 



Tegetmeier, ' The Field,' Jan. 22nd, 1887, p. 114. 



