Turner, Homing of Ants. 



389 



Explanation of Abbreviations in Tables I to VII. 



Column A. The number of the experiment in the series. 



Column B. Minutes that have elapsed since the close of the last experiment. 



Column C. Minutes that have elapsed from the beginning of the experiment up to the time the 

 first ant reaches the nest (either burdened or unburdened). 



Column D. Ditto. Second ant. 



Column E. Ditto. Third ant. 



Column F. Ditto. Until a line of ants is moving to and from the nest. 



Column G. Ditto. Until all of the pupae have been carried to the nest. 



TABLE I. 



Prenolepis imparh Say. Series I. 



Any time less than one-fourth minute is called o. 



* Many of the workers passed at once to where the incline had formerly been attached, and up to 

 the end of the experiment some would always go to that place first and then from there to the new incline. 



f Two pupae were carried down the new incline, the rest down the old. 



j Three pupae were carried down the new incline, the rest down the old. 



° Three pupae were carried down the old incline, the remainder down the new incline which occupied 

 the position of the incline down which they had learned to convey pup^e to the nest. 



