1914.] NATURAL SCIENCES OF PHILADELPHIA. 321 



6. Glue in wing niches and legs of dedlated females of Camponotus 



covered with vaseline. 



During October the 22 remaining live dealated females of Cam- 

 ponotus were tested with the six odors after the niches from which 

 their wings arise had been filled with liquid glue and the legs had 

 been covered with the vaseline-beeswax mixture. When put into 

 the experimental cases they were as quiet as before they were thus 

 mutilated and seemingly removed but little of the vaseline. They 

 appeared normal in all respects except that they responded to odors 

 more slowly than they did before the glue and vaseline were used. 

 The reaction times are: oil of peppermint 3-15 seconds, average 

 5.64 seconds; oil of thyme 3-15 seconds, average 6.32 seconds; oil 

 of wintergreen 3-10 seconds, average 5.14 seconds; honey and comb 

 3-60 seconds, average 19.00 seconds; five times they failed to respond 

 to the honey odor when the vial was held under them for 60 seconds ; 

 leaves and stems of pennyroyal 4-15 seconds, average 6.32 seconds; 

 formic acid 3-10 seconds, average 5.23 seconds. These give a 

 general average of 7.94 seconds, which is more than twice the reac- 

 tion time obtained by using the same ants before glue was put into 

 the wing niches and vaseline was put on the legs. At the present 

 writing (May 20, 1914) the longevity of these mutilated females 

 cannot be given, for as yet only 5 of them have died. These 5 lived 

 from 7 to 44 days. After being tested, each female was returned 

 to her own nest or cage. Those put back into Fielde nests were at 

 first accepted hostilely by their offspring. This hostility was probably 

 due to the presence of the glue and vaseline. All of those that had 

 workers were sooner or later cleaned, and thus they became normal 

 again. Four of the five that died had no workers and the vaseline 

 spread over the greater portion of the ant's body. Cannot the slow 

 reaction time obtained by using the mutilated females be attributed 

 to the fact that many of the pores were prevented from receiving 

 odor stimuli on account of these pores being covered with glue and 

 vaseline? 



7. Wings of males of Camponotus pulled off. 



The wings of 25 males of Camponotus were pulled off. Usually 

 a small drop of blood exuded from the wound when a wing was pulled 

 off. They were quite restful and were easily tested. They appeared 

 normal in all respects except that they responded to odors more 

 slowly than did their brothers with intact wings. The reaction 

 times are: oil of peppermint 2-5 seconds, average 2.72 seconds; oil 



