270 



MARIO GARCIA-BANUS 



TABLE 3 



Time in hours required for emergence of the oral hydranths in pieces of different 



length 

 Ratio of the length of the pieces = 1:2. 

 Series A Apical piece = 10 mm. Basal piece = 20 mm. 

 Series B Apical piece = 20 mm. Basal piece = 10 mm. 



sense and adding their effects, as would be the case if the shorter 

 piece were basal to the larger one. 



We have found the existence of this factor of the size of the 

 pieces to act constantly but irregularly, and we have tested the 

 other factor of level comparing a series of stems cut in such 

 a way that the shorter piece is the more apical with another 

 series of stems, under the same conditions and cut into the same 

 proportions, but in which the shorter piece is the more basal one. 



The results are given in tables 3 to 5. In the experiment 

 recorded in table 3 the ratio of the lengths of the pieces was 1:2. 



