EAR-SIZE 



13 



Ear length 

 in mm. 



220- 



210 



200- 



190 



130 



no- 



lea- 



150- 



140 



130 



120 



110 



100- 



90 



80 



70 



60 



SO- 



40 



30 



Aqe in ' ' — ' — ■ — ' — i — ' — ' — r— i 1 1 — r 1 — i — \ 1 1 1 — r- 



v/eeks. ' 2 3 4 5 6 7 6 9 10 II 12 13 14 I5 16 17 18 13 20 



Fig. 2. Growth-curves for a litter of five lop-eared rabbits. 

 See table 2 and compare fig. i. 



