120 



Ohio Naturalist. 



[Vol. 1, No. 8 



The width only was taken on account of the difficulty in finding a 

 good point at the base of the wing from which to measure the length. 

 The results are so unifonn that the width probably gives sufficient 

 data from which to draw conclusions. 



Of the four hives studied, numbers one and two were very weak. 

 Number three was a strong hive which made forty (40) pounds of 

 extra lioney in the summer of 1900. Number four was weaker than 

 number three and made only ten (10) pounds of extra honey. 



The complete measurements are too long to give in detail, and 

 the averages only will be offered here. 



AVERAGES OF TWENTY-FIVE MEASUREMENTS FOR EACH HIVE TA- 

 KEN WITH AN EYE-PIECE MICROMETER, EXPRESSED IN MM. 



HIVE NUMBER ONE. 



Average Number of Hooks. 



Right wing. 

 19.2 



Left wing. 

 18.8 



Average Width of Wing. 



Right wing. 



Ant. Pos. 



4.14 3.48 



Left wing. 



Ant. 

 4.16 



Pos. 

 3.48 



HIVE NUMBER THREE. 



As to the first query concerning the individual variations in a 

 single hive the complete table shows that No. 1 varies from 18-21 

 liooks, No. 2 from 17-21, No. 3 from 18-23 and No. 4 from 17-21. The 

 right wing is taken as the standard, and the most active hive. No. 3. 

 shows the greatest individual variation. One bee in this hive had 

 only sixteen hooks, the remaining three being straiglit spines, show- 

 ing how the hooks have been modified from ordinary hairs. This 



