j88 



DISCOVERY REPORTS 



50 



50 70 ao 



LENGTHS _ CMS 



90 



100 



110 



'i';:cSrc£Sx-ijs='t^t3J:sr,iSi^^^^^ 



60 70 80 



LENGTH5_CM5 

 Fig. 21 J. The same as Fig. 2i«, on an arithlog scale. 



90 



100 



