Haggerty : Study in Arithmetic 



435 



13 



10 



9 



ATTEMPT.^ 



8 



RIGHTS 



99 



73 



123 



136 



'58 



54 



66i64'59 



99 'p: 



65 



INDIVIDUAL 

 CITY 

 BOSTON 

 COURTIS 



106 



500 lOOO 1300 



FIG. 1^1 MEDIANS GRADE 6 SERIES B '^I'BTRACTION 



