EXPERIMENTS ON A QUEEN ANT. 197 



opaque porcelain, one of violet, and one of red glass, 

 aL of the sanae size. The result is shown below. 



Obs. 



1. Queen went under red glass 5 | P"Pf '^^''l ^f^'' 2 I 

 ° I under red srlass ( 



under 

 porcelain 



7 

 7 

 2 

 2 

 7 

 

 6 

 

 10 

 

 6 



6 

 3 

 10 

 

 2 

 3 



a 



Obviously, therefore, the ants showed no marked 

 preference for the porcelain. On one, but only on one 

 occasion (Obs. 9), most of the pupae were carried under 

 the violet glass, but generally it was quite neglected. 



I now tried a similar experiment with porcelain and 

 yellow glass. 



1. Queen went under porcelain g | P"P^7^^^';^''^" 2f "°<3,ef 



^ I under yellow. I porcelain 



2. „ .,2 „ 8 



*• M »• O » 2 „ 



