18 



HELEN B. HUBBERT 



Rat 



6 

 8 

 10 

 15 

 16 

 19 

 24 

 27 

 36 

 37 



TABLE II 



TWENTY-FIVE DAY RATS 

 11 males 16 females 



Trials 



18 

 45 

 32 

 28 

 34 

 27 

 40 

 24 

 51 

 30 

 30 



Absolute 



Time Distance time 

 (sees.) (cm.) (sees.) 



2541.4 



1903.4 



959.8 



699.6 



423.2 



1592.2 



721.2 



388.4 



1588.0 



1603.2 



1632.8 



18035.2 

 38666.8 

 36732.4 

 23770.4 

 19424.0 

 30016.4 

 29207.2 

 16131.6 

 41816.0 

 28454.4 

 23070.4 



5.7 

 5.1 

 5.3 

 5.0 

 4.9 

 5.5 

 5.5 

 6.1 

 5.6 

 9.1 

 5.5 



19 



2 



5 



9 

 11 

 12 

 13 

 14 

 17 

 20 

 21 

 22 

 25 

 28 

 31 

 41 



Totals. . . 

 Averages. 



23 

 26 

 14 

 38 

 18 

 32 

 46 

 24 

 26 

 34 

 36 

 32 

 36 

 28 

 44 

 17 



Average for 

 Average for 



822 

 30 



32 



29 



7.2 

 5.5 

 5.2 

 5.4 

 5.7 

 6.1 

 4.9 

 5.6 

 5.6 

 5.3 

 5.1 

 5.4 

 5.2 

 5.2 

 5.2 

 7.6 



153.5 

 5.7 



5.7 

 5.6 



The enormous number of figures involved, makes the showing 

 of individual records inexpedient. An exact copy of the daily 

 record for rat number fifteen of the twenty-five day group, 

 from the first to the last trial appears as table I. The averages 

 and totals for each rat which appear in table II are obtained 

 by adding and averaging the daily records for the individual 

 rats. The total time, total distance, total number of trials 

 and the absolute time of the twenty-seven rats were added and 

 averaged to give the average total time, the average total dis- 



