Amides of Meconic and Comenic Acids. 225 



the most feasible methods I could devise for bringing about 

 these results in the present instance without success. 



The preceding investigation was pursued in the laboratory 

 of Professor Anderson of Glasgow, and I cannot refrain from 

 expressing my grateful sense of the assistance and animation 

 I have experienced from his valuable advice, and the interest 

 he has always taken in the progress of my researches. 



In conclusion, I append a tabular statement of the sub- 

 stances whose composition is substantiated in this paper. 



Meconamidic acid, dried 1 « tta n tt -ma a tta 



at 212°, . j 6 H0 > C ** H *4 N 7 °63 + 9 H0 



Meconamidate of am- | 



monia, white salt, I 6 NH^O, C Si H >4 N„ 63 



dried at 212°, . J 



Meconamidate of am- "| 



monia, yellow salt, I 6 NH 4 0, C o4 K Zi N 7 63 + 3NH 3 + 6 HO 



dried in vacuo, J 



Biamidomeconic acid, 1 ^^ n TT , T ~ 



dried at 212°, . ) H0 ' ?« H * N ° 



Biamidomeconic acid, 1 u^. ^ TT , T A 



. j ' > HO, C M H s N 9 o + aq. 



air-dry, . . J ' u 5 2 9 ' i 



Comenovinic acid, dried 1 nA n tt a n TT A 

 at 212°, . . j HO C 4 H 5 0> C i2 H 2 8 



Comenamethane, dried! n tt r\ n u ma 

 at 212°, . . | G i H 5 ' ii H ^ 



c ^Xe m d: thane? . crys " } °* H * °> <V H ^ N °' + 2 H ° 



Hydrochlorate of Co- "j 



menamethane, dried I C 4 H. O, C u H 4 NO., 2 HO + II CI. 

 in vacuo, . I 



