46 DIVISION OE LABOUR. 



nests contained about 200 individuals of F. fusca, the 

 other was a nest of P. rufesce^is with the usual slaves, 

 about 400 in number. The mistresses themselves 

 never came out for food, leaving all this to the slaves. 



"We began watching on November 1, but did not 

 keep an hourly register tiU the 20th, after which date 

 the results are given in the following tables {see 

 Appendix). Table No. 1 relates to the nest of F. 

 fusca, and the ants are denoted by numbers. The 

 hours at which we omitted to record an observation are 

 left blank ; when no ant was at the honey, the square 

 is marked with a 0. An ant, marked in my register as 

 No. 3, was at the time when we began observing acting 

 as feeder to the community. 



The only cases in which other ants came to the 

 honey were at 2 p,m. on November 22, when another 

 ant came out, whom we registered as No. 4, another 

 on the 28th, registered as No. 5. Other ants came out 

 occasionally, but not one came to the honey (except 

 the above mentioned) from November 28 till January 

 3, when another (whom we registered as No. 6) began 

 feeding. After this a friend visited the honey once on 

 the 4th, once on the 11th, and again on the 15th, when 

 she was registered as No. 7. 



Table No. 2 is constructed in the same way, but 

 refers to the nest of Polyergus. The feeders in this 

 case were, at the beginning of the experiment, regis- 

 tered as Nos. 5, 6, and 7. On November 22 a friend, 

 registered as No. 8, came to the honey, and again on 



