GORTNER AND Harris: FRvuitrS OF PASSIFLORA GRACILIS 33 
fa\, PeMinnen Mase eg Eee 2 2 + 0.0029 C. 
g." Saree eg eet! I 2 ged f 
Brie our reat Sy att ) I + 0.141 
} 
On combining trimerous and tetramerous (as above) without 
regard to the character of the proliferous body we have: 
+ o.011° C, 
Boo ae 7 4 | 
Much | 5 4 | 0.25 
Poa 7 + 0.325 
Apparently the proliferous fruits tend to show a greater de- 
pression of the freezing point and a higher osmotic pressure in 
their expressed juices than the normal checks with which they 
were compared. This is true for trimerous and tetramerous 
fruits alone and for the two classes taken together. Considering 
the fruits merely as normal and abnormal, we note that these 
results are in good agreement with those for fruits abnormal only 
in respect to the structure of the wall. For the trimerous fruits 
the results for M are, however, not in accord with those for fruits 
abnormal with respect to the wall only, M being higher in the 
abnormals than in the controls. For the tetramerous fruits the 
average molecular weight is again lower than in the controls. 
Taking both trimerous and tetramerous fruits (with prolifications) 
together, we find practically no difference between the average 
molecular weight of the fruits containing supernumerary carpels 
and that of their controls. 
Let us now simply classify the fruits as normal and abnormal 
and compare the 23 samples abnormal in some character with 
their controls, which are normal in all regards. We have: 
Positive difference | Negative difference | Mean value of differences 
Pie dsagslled scien OMAR RE eee 
Bey see te 15 8 | + 0.0107° C. 
Mee 7 14 | . — 2.001 
Pe oe 15 6 | 0.2275 
These results emphasize the conclusions drawn from the 
individual classes of fruits. 
* Available for one case where Mand P were not calculated. 
+ Available for two cases where M and P were not calculated. 
