36 Proceedings of the Hoy at Society 
(5.) Prepared by mixing solutions of meconic acid and nitrate of 
silver, tlie resulting precipitate being dried at 120° C. 
6-46 grs. gave 3 *42 grs. Ag = 52*94 per cent. 
(6.) Prepared by adding argentic nitrate to solution of neutral 
meconate of ammonia. Dried at 120° C. 
8*035 grs. gave 3*385 grs. Ag = 42*12 per cent. 
(7.) Prepared in the same way as the preceding. 
12*410 grs. gave 5*705 grs. Ag = 45 97 per cent. 
(8.) Prepared by mixing solutions of silver nitrate and neutral 
morphia meconate. Precipitate dried at 120° C. 
6*11 grs. gave 3*41 grs. Ag = 55*81 per cent. 
(9.) A quantity of argentic meconate prepared by precipitation 
was boiled for a few hours with water, the residue then dried and 
ignited. 
6*075 grs. gave 3*785 grs. Ag = 58*45 per cent. 
(10.) Another portion of the same salt was boiled in water for 
twenty-four hours. 
2*840 grs. gave 1*725 grs. Ag = 60*73 per cent. 
(11.) Another portion boiled for forty horns, and the residue 
similarly ignited. 
6*065 grs. gave 5*390 grs. Ag = 88*87 per cent. 
(12.) A quantity of argentic meconate, formed by mixing solu- 
tions of nitrate of silver and meconate of ammonia, was boiled 
with water for forty hours and the resultant substance ignited. 
3*67 grs. gave 2*84 grs. Ag = 77*38 per cent. 
AgC 7 H 3 0 7 = 35*17 Ag per cent. 
Ag 2 C 7 H 2 0 7 = 52-17 
Ag 3 C 7 H0 7 = 62-18 
When the experimental results above described are compared 
with the numbers just given, it will be noticed that in no case do 
