J. BADOS GillJJi.KX . Oiithrx. i/er /■nj/i/tt/i-// vim th- luH>j'fJa,ssf'H f/ix. 



n II. 



ïio-.lSiül 22. A =B ^0 



T-x A-C. 



T^> A-C. 



Z 



O. 



r=.A-C. 



O,/ 



.Fiq.J?2 . p ^+ q^^= + , T '=o . 



Fio:.23 tot 27. A ^ B = C. 



riif^'s. q=+T==+,p' 



Fit/Si. q-+r'-o,p^-+ 



rig.23. q'+r^-+,p'-o. 

 q'+T^A-B. 



O, 



^1 



X 



Tig.36^ q= + r'= + .p'.o. Fig.21 q='+l-'.+ , p'' = o 



q=+x= > A-B 



Xi 



=+r'=A-B . 



1'io- 2K, A = Ü = C. 



i-'ï^^,». -p*+q='+T^=+. 



Xj 



Oi 



VRIUI.II. KO.X. .IK.iU. VA.X WK rr.NK'' 11. II. III. 



