18 



HELEN B. HUBBERT 



Rat 



46* 



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 



Time 

 (sees.) 



2541.4 



1903.4 



959.8 



699.6 



423.2 



1592.2 



721.2 



388.4 



1588.0 



1603.2 



1632.8 



Absolute 



Distance time 

 (cm.) (sees.) 



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 



Average for 

 Average for 



23 

 26 

 14 

 38 

 18 

 32 

 46 

 24 

 26 

 34 

 36 

 32 

 36 

 28 

 44 

 17 



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- 



