262 Prof. Latham, On the formation of lactic acid, [May 11, 



pH 2 



l 



Similarly CH S 



(NH <CN.OH 



6CH 2 J =(4)CH 2 i + 5H 2 



COOH ^CN.OH 



""(COOH 

 writing it so for shortness, the number in the bracket indicating 



the number of molecules of C ra H 2re \ ,^ ; and in this way we arrive 



at an atomic combination of the cyanhydrins or cyan-alcohols 



united to a cyanamide CJ3. 2n jn^ 2 an( * an ac i d C m H 2n Iqqqtt • 



If now we dehydrate six molecules of glycocine and three of 

 each of the other glycines in the series up to leucine and attach 

 them to a benzene nucleus, we shall I think have a compound the 

 constitution of which will give us some insight into that of al- 

 bumen. 



(OTT 

 C H (NH ) COOH ° r P ara - ox 7P hen y 1 - amido 

 propionic acid, which is obtained from proteid substances, may be 

 thus represented 



HO 



H* 



H a -C 



C-H, 



C-He 



C 2 H 3 (NH 2 

 \COOH 



(NH 2 



The CH -L^Att being derived according to my view from 

 2 3 (COOH 



C 2 H 4 |5? 2 that is from C 2 H 4 L^. . This indicates the point of 



attachment to the benzene nucleus of the C 2 H 4 series. If then 

 we replace H a by the CH 2 series, H^ by the C 3 H 6 and C 4 H 8 series, 

 and H v by the C,H in series, we have H 5 left to be replaced by some 



(NH 

 sulphur compound and the composition of Taurine C 2 H 4 jgQ fj 



