Ill lif.'. 1 I'liiU" 1\ these ixsiilt* ire repri«i>r.t<-il in n ^iii|i)iic iiuiiiiitr Tin- 

 ililU iinrc lK-t\vc«Mi till- t\v(i RfU liif» in tl»«- Ouf fliui ti tlif Intter t«ic<- tin iiuicli k<>ii 

 is ns^^d lis ill the forinei. nnd the nsuli is tltiit .-it r.uy fjivet» time the iliiiiiriiition 

 ill the gjiecific rotjitory power is grwiter in tlie liiltor. Fiirtlier. the ^^enerul Uniu 

 of tlie twd ( iirves is Rimihir. und there in im evideiicv of any muMeti hrwik in th<' 

 run 0. such jis in Mrown ami Heron's . .il8 imliciileii ii tielinite elieniicn) 



cjimtion. Sia-h a \i\v.\k conid n>i Ix' i. secinj; that the iicti.in of k.ji 



Hiiiifion nixin niiill<.s<- wnuld tend t" di«f:ti:w ün« ii mipiinnii, liy niMiin;; down 

 the eornen^, lus it were. 



Tiililf XVII ^ives tlie result* <•{ a hiniilar i'\|>erinieiit ni;i4h> iit 4hV, 



TAUJ,!-: XVII. ACTION <»| KO.II KXTItAi T ll'oN STAKCII AT 4". < 



10 j;nini8 of stiireh tu Kl L'mms of köji. 



-•> .. 

 J 1.1 



^"'' 



■ ini- ■( ] ■•.«iiii-Itt, 



!'.<" j;"> 



1 I2.°r, 



.,., 



;-.'ti.".! 



-.■.: ,. 



im;. 





lOX.Ii 



'l/t.s 



Ilia. 



'■'.'•'*' 



■•«.:; 



V iiiiiio l>r>ji :i>lili>d. 

 4) lir<< 



Ui.\- 



>H, 



III tlie curve lij^. "J riiit4' IV, which re|i!eseiit.s these ixmiitu v'*°>i|>liimlly, 

 it will Ik> noticed that. dnrinp;tlie Prst five ininiite« the full in thes]ieeilic rotatory 

 [Kiwer is very nipid until it arrives iit | "1^ = 14*2 \fi iiflcr which it |inHeedi« in 

 very nearly a stnii^hl line till the K|ietitic rotatory |<>wer V4|nulH KM» , after which 

 it renitiins almost the siTiie, until after a Inwh addition <if köji, wliidi raiisct« a 

 iviiiKtion to NS . Ah the nite of reduction alter the addition of ii fn*ii «jnantity of 

 koji i8 very nearly the Miinc :u< at Hot. im is »hown hy the similarity in th< 

 inclinations of »he curve, it is evident that the koji first iiddcil hml I««'« nearly 

 exhausted when the s|ierifii- rotatory jniwer nf KMi ' wiis attaiiie«!. 



At a hi;,'her ieini>eratiire. (iu C , the iictii ity <<f the koji solution in vi-ry s«ioii 

 exhuiiste«!. its will U- «(«en from the followin;; n-sidts. und from the etirve 

 Plate \'. 



