■! 



8AM 9 iO li 12 iPM2 3 4 t 6 7 8 9 10 U 12 IaSTI 3 4 5 6 7 i 



Fig. I. Graphic records showing the distribution of the activity of each of the 



exercised rats as recorded on the kymograph paper. The rats were 32 days 



old and had been weaned and put in their cages but four days before. 



O and V refer to omnivorous and vegetarian rats respectively. 



(2 









II ill ir II 1 II nil IM.III II 



" ' " 





" 

















0{3 































U 



























,1 





/& 































.u 































17 

































Is 

































BAMS 



10 



II 



12 



IIPM 2 1 4 



i 



6 



7 « 



9 10 U 12 IAM2 



3 



4 



S 



6 



7 



» 



Fig. 2. Graphic records of activity of omnivorous (O) and vegetarian rats (V) at 



the age of 6 months. 



"li 



I 



6AM 9 10 II 12 IPM 2 345 6 7 8 9 10 U 12 lAM 2 3 4 S 6 7 



Fig. 3. Graphic records of activity of omnivorous (O) and vegetarian rats (V) at 



the age of ii months. 



5_ 



'— '^■imii 1^ ■ 



8AM 9 10 11 12 IPM 2 3 4 5 6 7 8 9 10 II 12 lAM 2 3 4 S 6 7 



Fig. 4. Graphic records of activity of omnivorous (O) and vegetarian rats (V) at 



the age of i6 months. 



O 3 

 (4. 



\B Dead 



V / 7 Dead 



Sam's iS li 12 ipmz 3 * « 6 7 s 9 10 11 12 iam2 34 s e 7 



Fig. 5. Graphic records of activity of omnivorous (O) and vegetarian rats (V) at 



the age of 21 months. 



