20 



Belfast Municipal Technical Institute : 



'VIDUALS 

 30O 



ISO 



JNOIVIDUALS 

 300 



KEY 



(3. 



TOTAL 

 MEN 



WOMEN, 



?//??/' 



f-° 



ALL COLUMNS MEASl/BEO 

 FROM THE BASE LINE . 





,£& 



£0 



%/3 H /J/6 /7/8/$Z02/2223Z42S2«272l23303/3233 3 T * 



" "AGES" D/AGRAM." 



VERTICAL SCALE - 40 iNDWfDUALS PEA INCH, 

 Fig. 3- 



