riiUo.s: .1. HUH. it. /'-//. IX. I'l.ii r. (//. 



0.//uwv///rv//) r// /^v// /// /^ >(>mi/7--Ju^y/n/<?ri/y. 





^ Fiq. 4. 



c 



C 



Fig^X 



Fiif. 6. 



JMue* v'jRJIifi^ ^^a. 



