TOTAL AMOUNT OF ACTIVITY 



15 



readily seen that the work done by all the rats corresponds rather 

 closely during the first three or four months. This corresponds close- 

 ly to the average daily work shown in Figure 11. As a matter of fact 

 the vegetarians average a trifle more at the end of the third month than 





Average number of revolutions 



Average number of miles 



A 



Omnivorous 



Vegetarian 



Omnivorous 



Vegetarian 



Age 

 in 



Males 



Female 



Male 



Female 



Male 



Female 



Male 



Female 



Mos. 



Avg. of 

 3 



Avg. of 



I 



Avg. of 

 I 



Avg. of 

 3 



Avg. of 

 3 



Avg. of 

 I 



Avof 

 I 



Avg. of 

 3 



I 



2,103 



1,300 



2,040 



1,583 



1.8 



1.8 



1-7 



1-3 



2 



22,793 



23,010 



37,120 



32,783 



19.2 



19. 



31-5 



27-5 



3 



95,343 



111,320 



143,380 



93,283 



82. 



95- 



122. 



80.7 



4 



195,620 



201,730 



198,980 



131 480 



164. 



170. 



168. 



127.7 



5 



326,887 



406,780 



249,600 



133,747 



277. 



336. 



211. 



159-5 



6 



425,473 



672,070 



276,960 



238,133 



349- 



572. 



234- 



201. 1 



7 



527,620 



1,041,330 



314,220 



273,353 



443- 



882. 



257- 



234.6 



8 



638,420 



1,388,260 



350,550 



339.003 



541- 



1181. 



297- 



287.7 



9 



744,473 



1,678,890 



382.320 



403,683 



630. 



1435- 



305- 



342.8 



10 



885,983 



2,028,190 



407,150 



473,163 



751- 



1710. 



345- 



405.5 



II 



979,550 



2,332,260 



437,090 



500,317 



827. 



1980. 



370. 



424-3 



12 



1,067,517 



2,647,640 



467,380 



522,467 



906. 



2230. 



396. 



441. 



13 



1,186,220 



2,938,160 



492,170 



542,663 



lOOI. 



2400. 



417- 



470- 



14 



1,338,657 



3,286,540 



505,820 



556,327 



mi. 



2780. 



428.6 



471-3 



15 



1,407,193 



3,559,8.30 



511,340 



571,900 



1181. 



3020. 



433-4 



482.6 



16 



1,474,603 



3,820,590 



515,530 



578,907 



1243- 



32.30. 



436.5 



488.8 



17 



1,536,670 



4,091,400 



520,910 



579,770 



1303. 



3460. 



440.6 



486.6 



18 



1,604,540 



4,318,780 



523,000 



.580,553 



1.3.38. 



3650. 



444-7 



490.3 



19 



1,660,893 



4,599,500 



525,890 



580,763 



1399- 



3890. 



445-7 



490.6 



20 



1,705,853 



4,867,910 



527,520 



581,400 



1454- 



4125- 



447- 



491. 



21 



1,735,267 



5,076,100 



529,160 



581,877 



1469. 



4280. 



448.5 



491.4 



22 



1,773,463 



5,290,770 



530,560 



582,280 



1497. 



4475- 



449-7 



491.8 



23 



1,805,327 



5,462,560 



533,000 



582,770 



1528. 



4620. 



450.9 



492.1 



24 



1,827,127 



5,573,480 









1551. 



4720. 





. . . 



25 



1,849,520 



5,679,360 















1568. 



4810. 







26 



1,858,510 



5,796,630 















1577- 



4900. 







27 



1,861,673 



5,909,860 















1582. 



5000. 







28 



1,862,980 



6,018,140 















1583- 



5100. 







29 



1,863,450 



6,118,320 















1587.2 



5180. 







30 



1,864,220 



6,202,570 















1587-7 



5250. 





. . . 



31 



1,864,533 



6,259,910 















1587-9 



5300. 







32 



1,864,653 



6,352,920 















1588. 



5350. 







33 





6,414,900 

















5430. 







34 





6,427,500 



















5447- 







Table V. — Showing the relative amount of work done by the two classes 

 of animals in revolving cages as indicated by the average number of revolutions 

 and the average distance run at the different ages. 



