i92 EXPERIMENTS ON 



No. 1. No. 2. No. I. 



12. 8 



12.10 



12.15 



12.27 



1.13 



1.22 



i.44 



12.13 



12.18 



12.25 



12.30 

 12.36 12.36 



12.40 

 12.43 



12.47 

 12.50 



12.53 

 12.56 



12.59 



1. 7 

 1.12 



1.55 



12.14 



12.24 



12.39 



12.45 

 12.52 

 12.57 



1. 

 1. 7 1. 7 



1.18 



1.25 

 1.33 

 1.41 



1.51 



1.56 

 2. 9 

 2.35 



