423 



She made therefore twenty-three journeys, but did 

 not bring a single friend. 



The last case of which I will give particulars is 

 the following: — On September 10, 1875, I marked 

 another wasp, also a worker, of, I believe, V. vulgaris. 

 On the 11th she came to the honey for the first time, 



returning at 7.25, and left at 7.27 



