94 
PROCEEDINGS OF THE NATURAL [April, 1887. 
Arrived. 
Left, 
10:25-10:30. 
. 80. 
... 135 
10:30-10:35. 
10:35-10:40. 
. 74. 
10:40-10:45. 
. 98. 
10:45-10:50. 
. 107..,,,,... 
10:50-10:55. 
. 129. 
.... 100 
10:55-11:00., 
. 105. 
11:00-11:05. 
11:05-11:10. 
17 
11:10-11:15. 
. 99. 
.... 84 
11:15-11:20.. 
11:20-11:25. 
11:25-11:30. 
11:30-11:35. 
. 99. 
11:35-11:40. 
11:40-11:45. 
11:45-11:50. 
o 
11:50-11:55.... 
11:55-12:00.... 
Total. 
It appears from 
an examination of 1 
" M -’ 1,0 f more was P had left than had entered, or, in 
work "tT IQ 1 at t ^ ere were at that time, 1,050 wasps out at 
observ t 7 M ’’ thlS number had been reduced to 872. The 
itwl , eX ‘? ed ° Ver S6Ven hours and twenty minutes, but 
that a tT lr y t [ :3 ° v A ' before th ®y be g a n to leave the nest, so 
S ^ich t 1 ^ onl y wor ked four hours and a half, dur- 
searchoff had been 4,534 departures of workers in 
search of food or building material. 
°ne of these^t ^ eterEn *° e the average length of time occupied in 
start with that fh^ ^ ° rmed the following table, assuming to 
w?r lb * Unl ' red had been 
were the first to return 'ti!:"'"' ‘ ! ’* t ““ firSt °” S *° g ° °,“ l 
truth for all nmrf 1 8 come near enough to the 
a. »o.t or LtT h „ p „T 8 ;: esp “ ial,y “ we ate toltog ” th 
tW “" 7:55 “> >* - fining onuSlTo ™ i “ t 
