180 



Firot trial 

 Rat // after 60 days' reat, 



S(H)77d" •- 



S lOsoj 



s(ir.Y)ll4J' 24.00 



S C\7Jl2od" 7.00 



S H\V ISOd* 9.60 



s(h\Y 131:^ 7.60 



E(:r;')l32J 3.40 



S(ir7)l33o' 8.60 



S }r;7)l34d' 54.60 



S 0:^)1400' 33.60 



S(\7/.IC)ll3o' 14.00 



S(CV/)l47cr 12.40 



S(CV0l48c:r 90.00 



S CvMl49d' 25.40 



S(CH)l55c-' 6.20 



S(CH)l56d' 6.40 



S(C/EB)73$ 5.00 



S C/EB)749 5.80 



s(h)o1o 8.80 



S(Tv7)l289 56.20 



S(Cv; 1299 15.20 



-'::H 141$ 17.40 



S(CK)142q 33.80 



S \7/HC)l449 66.00 



S '.7/HC)145o 2.40 



'.V/:IC)146q 24.20 



CH)1579 105.00 



CHJI595 30.40 



CHjieOj 2.20 



S(W/HC)1569 2.00 



Average 22.587 



Table Xb . Absolute Retention of Normal Rats. 



