SYMMETRY IN TRANSPLANTED LIMBS 
81 
Piowever, the comparisons cannot be accurately made without 
the same number of experiments in each class, unless made by 
means of percentages. This is quite obvious, for instance, in 
the case of the homopleural transplantations with dorsodorsal 
orientation, which all result in normal limbs. The relatively 
TABLE 5 
Transplantalion of half buds. Comparison of pairs of qualUies of operation 
PER CENT 
NORMAL AFTER 
CORRECTION 
FOR INEQUAL- 
ITY IN NUMBER 
OF EXPERI- 
MENTS 
PAIRS OF QUALITIES COMPARED 
Homopleural . 
Heteropleural 
Dorsodorsal . 
Dorsoventral 
Homogeneous . 
Heterogeneous , 
Vertical 
Horizontal 
Anterior or dorsal half trans- 
planted 
Posterior or ventral half trans- 
))lanled 
Harmonic (hom. dd and het. dv) 
Disharmonic (hom. dv and het. 
dd) 
NUMBER 
OF CASES 
PER 
CENT 
NOR- 
MAL 
Normal 
Normal 
by 
resorp- 
tion 
Re- 
dupli- 
cated' 
Total 
8 
4 
11 
23 
34.8 
21 
3 
13 
37 
56.8 
10 
3 
10 
23 
43.5 
19 
'1 
14 
37 
51.4 
13 
7 
15 
35 
37.1 
16 

9 
25 
64.0 
14 
5 
8 
27 
51.9 
15 
2 
16 
33 
45.5 
15 
6 
11 
32 
45.45 
14 
1 
13 
28 
50.0 
27 

3 
30 
90.0 
2 
7 
21 
30 
6.7 
50.0 
50.2 
56.25 
43.9 
53.75 
46.8 
50.2 
50.0 
93.9 
6.25 
' The four cases of anomalous 
tabulation. 
reduplication have been omitted from this 
small number of cases in this group affects the record for homo- 
pleural transplantations by reducing considerably the number 
of cases that would have developed normally, therebj' giving 
undue weight to the larger number of dorsoventral cases which 
result in reduplications. Likewise the dorsodorsal vs. dorsoven- 
tral record is influenced by the relatively small number of homo- 
pleural cases. 
