332 



Florence Peebles 



TABLE 4 



This series of grafts shows the general result obtained from all. 

 It will be noticed at once, that the oral hydranth on A forms sooner 

 than that on B in nearly every case. The delay must be due to 

 changes going on just in front of B at the line of union, for the 

 pieces were originally from corresponding regions of the stems. 

 The oral hydranth on A and the aboral on C appear at the same 

 time, the oral hydranth on B and C at the same time, and the 

 aboral hydranth on A and B at about the same time. The reason 

 for this is obvious, for the aboral end of C had a start of twenty-four 

 hours and the aboral surfaces of ^ and B, and the oral ends of 5 

 and C were exposed at the same time. 



Experiment 2. A second series of experiments, somewhat sim- 

 ilar to those just described, was made in order to find out (i) if 

 the number of hydranths formed in the region of the graft would 

 be increased if the two components were the same length, instead 

 of one being much shorter than the other, and (2) to compare 

 the rate of development on the oral and aboral ends of A and C 



(Fig. 9)- _ 



Two long pieces were united in the same direction, as described 

 in the preceding experiment. After 24 hours the double piece was 

 divided by three cuts (Fig. 9, /, 2 and j) but this time both the first 

 and second cuts were made through the distal component, and the 



