450 Profs. Percy Frankland and Marshall Ward. 



The first change of importance was that a segment, e, already bent 

 at an obtuse angle with <y in the last stage, had now separated from 7 

 as an independent rod, the rest (and it) had grown as follows : 



a' = 49-5 

 ft' = 112-5 

 7 = 166-5 

 e = 36-0 

 = 20-25 



having grown 1'25 

 4'5 



;}- 



Total. . 384-75 p. 



22-5 ^ 

 2-25 



30-5 u 



In the next phase the difficulties began to increase. The mean 

 time of measuring was 5'21, and the change of positions and growths 

 are seen from the following diagram and table : 





