268 



PROFESSOR A. G. GKEENHILL ON THE 



A, = 



p- 



p ( v ) _ 5;/ 1 ' + 1 2p s - 4p 2 + 2p - I + 2 ( p* - p + l) 

 M 140> 



- 2m 



(23), 

 (24), 

 (25). 



Test by 



For the elliptic-section values the region may be selected in which, in accordance 

 with 28, 







1)} ( ., 



V^ 



1)| , . 

 , . 



With 



/( H ) f K' \ 7 _ 7 _ 7/(a- /a 

 \ BO C] " 1 2t \ a 



H 



BO 



( 1 2m) 7 \ x a 



(32), 

 (33), 

 (34), 

 (35). 



