28 



fourth of the larvae, which they have gathered up. These larvae are an 

 inch and an eighth from the sand. May 6, 9 a. m., nearly all of the 

 ants are out on the edge of the base. About two-thirds of the larvae 

 have been brought together at a corner of the nest, and about a dozen 

 ants are with them. Occasionally another larva is brought over to the 

 corner. 11 : 30, situation unchanged. 2 p. m., a few more larvae have 

 been recovered. 5 : 30, about a dozen ants in the nest with larvae, not 

 all of which have yet been recovered. May 7, 8: 20 a. m., most of the 

 larvae that had been moved to the corner of the nest are now out on 



Fig. 6 



the edge of the base, and there are no ants under the cover. 11 :30 

 a. m., and 5 p. m., situation unchanged. May 8, 9 a. m., no ants under 

 the cover. Experiment closed. Total time nearly 7 days. [Mr. Tan- 

 quary's notes do not show that the ants were fed during this experi- 

 ment.] 



Experiment 5772, Emulsion of Oil of Lemon. — April 25, 3 : 50 

 p. m., small amount of sand moistened with a 5 per cent emulsion of 

 oil of lemon was placed under the cover. The ants gradually crowded 

 away from the sand. 4 p. m., the ants were three-eighths of an inch 

 from the sand, and were taking their larvae with them. 4:10, the ants 

 were half an inch from the sand. 4:45, the ants were withdrawn an- 

 other eighth of an inch. 5:45, same distance from the sand, but not 

 so many under the cover. April 26, 9:30 a. m. (17 hours and 40 

 minutes), about half the ants were under the cover, half an inch from 

 the repellent. Larvae three-fourths of an inch distant. 10 : 45 a. m,, 

 about two-thirds of the ants were under the cover, the nearest a fourth 



