GENETIC STUDIES OP RABBITS AND RATS. 

 TABLE 16. Correlation of ear-length with tibia-length. 



35 



Mean ear-length, 105.42 0.41. S. D. ear-length, 11. 48 0.29. 

 Mean tibia, 93.64 0.19. S. D. tibia, 5.27 0.13. r,. 0.741 0.016. 



TABLE 17. Correlation of weight with skull-length. 



Mean weight, 2,141.016.9. S. D. weight, 447.011.9. 

 Mean skull-length, 73.17 0.16. S. D. skull-length, 4.380.11. 



r, 0.8520.010. 



