-r N-y 



:: y>7:-y ;?. AN> 



n it is su^estive ths: the derive 

 trongly marked si charadui&lK. of 



O! 



ett 



of :hc 



<-< 



:T. :v*i:.< < 



reversal of dedrical response probibl 



IMS rc\"cr>.^. ^-1 rofpor-sr. tr 



the 



positivity, mxy be the worit of three different factors, whkh 

 may or may not be mutnally dependent In the fiist place, 



' ' i" '" .". ' 'C Sv'v" " " . T . '. . C\~ *" ~CC'~.~ **'.'.' .- iV > t ." . - .". ' , ' " "."> , : . ." t v " 



itseU; other dungs being equal, to give rise to aiewsal of 



Second '.y, after secretion ha? reached its 



. ....... ^^"^^ ^^... '.U^'J 



QH6 v . . "^ % \ v x - - "^ vv ^ R COUdfeCC I(WK 



natwally tend to reabsorb. And, lastly, we have seen that 

 an increase of internal cntigy, in whatever way produced, 



