OP ARTS AND SCIENCES. 



103 



Below are the numbers obtained by subtracting the reading of B 

 from that of the other lines in the B group : — 



ca 



nq 



oq 



^5" 



Bq 



aj 



50 CO O CD 



co eo eo eo 



W M 



£3 



Rq 



nq 



Rq 



Bq 



oq 



BQ 



O ~* H 



CO CO CO CO 



