385 



Iru,^ AA^iV^ A'n-\-t')X%5...(A'n+t') 



2.3...(2A'n— s') X2.3...(s'— A'n) 



/ A('-') \ 



cv"A^y 



XSP 



(.AiV'+S+^)(.AA-'+S+'-^^ - 



]A'' 



X, 



S-S.-Aí' 



TOMO ri 



40 



