34 



GENETIC STUDIES OF RABBITS AND RATS. 



Mean ear-length, 105.46±0.41. S. D. ear-length, 11.46±0.29. 



Mean humerus, 64. 17 ±0.13. S. D. humerus, 3.73 ±0.09. r, 0.823 ±0.011. 



Mean ear-length, 105.45 ±0.41. S. D. ear-length, 11.47 ±0.29. 

 Mean femur, 80.73 ±0.18. S. D. femur, 5.00 ±0.12. r, 0.828 ±0.011. 



