GENETIC STUDIES OF RABBITS AND RATS. 



Tablb 29. — Correlation of tibia with femur. 



41 



Mean tibia, 93.69±0.19. S. D. tibia, 5.48±0.14. 



Mean femur, 80.76±0.18. S. D. femur, 5.19±0.12. r, 0.927±0.005. 



TabIiB 31. — Number of size f odors indicated hy each set of measurements as differentiating 



the three races crossed. 



