80 
ROSS G. HARRISON 
the proportion of normal results to be as given in table o, column 
6. 'Normal by resorption/ being fundamentally the same as 
reduplication, is classed as such. 
133 
Fig. 133 Transplantations of half limb bud (comb. 16, fig. 120); ventral half 
left side to dorsal right (het.dv.). Exp. H. R. E. 36. Normal limb. 
Fig. 134 Transplantation of half limb bud (comb. 13, fig. 120); anterior half 
left side to anterior right {het.dv.). Exp. H. R. E. 10. N, normal left arm; TR, 
grafted arm with palmar reduplication of .two digits (DU). X 10. 
The one thing that stands out is the great difference between 
the results of the harmonic and those of the disharmonic combi- 
nations. In the case of none of the other attributes of opera- 
tion is there anything like the same difference between those of 
a pair, though in the case of homogeneity vs. heterogeneity the 
difference is considerable (37.1 vs. 64 per cent). 
