372 DR ANDERSON’S RESEARCHES ON SOME OF THE 
and I did not obtain it in sufficiently large quantity for analysis. Chinoline, I 
conceive, it cannot possibly be, but whether it is aniline, or a base isomeric with 
it, I shall for the present leave an open question. My impression certainly is, 
that it is not aniline, and it is quite conceivable that the decomposition may be 
very different, and that during distillation only two equivalents of carbonic acid 
are separated, as is the case in every other instance if the production of a volatile 
base; and in that case we should have a substance isomeric with anthranilic acid, 
and possessing basic properties. 
Apophyllate of Silver.—This salt can only be obtained by digesting apophyllic 
acid in solution upon moist carbonate of silver, filtering from the excess of car- 
bonate, and precipitating the solution with a mixture of alcohol and ether. The 
salt is thrown down as a perfectly white powder, of a more or less crystal- 
line appearance, and which colours slightly by exposure to the light. It is ex- 
tremely soluble in water, sparingly soluble in alcohol, and insoluble in ether. It 
does not explode when heated, and undergoes a slow decomposition, leaving 
behind metallic silver. As precipitated from the original solution it is liable to 
retain excess of oxide of silver, and requires to be purified by a second solution 
in water and reprecipitation with alcohol and ether. 
6°685 grains of apophyllate of silver gaye 
8-005  ... carbonic acid, and 
1:385° ... ~~ water. 
2882... * silver: 
{ 6-425 grains of apophyllate of silver gave 
{ 5'802 grains of apophyllate of silver gave 


2395... _silver. 
Experiment. Calculation. 
—_——_ ———$_—_—_——_~. 
Ji Il. 
Carbon, . 5 32°65 64 33:22 Cc 96 
Hydrogen, 4 2°30 Be 2:08 Ae 6 
Nitrogen, : ae 560 4°85 N 14 
Oxygen, 5 noe one 22°33 0, 64 
Silver, . 5 37°39 37°27 37°52 Ag 108-1 
100-00 288-1 
The formula is therefore AgO C,, H, NO,. 
Apophyllate and Nitrate of Silver—When a solution of nitrate of silver is 
added to one of an alkaline apophyllate, a rather sparingly soluble crystalline salt 
is deposited, which has been described by WouLER as the apophyllate of silver. It 
is, however, a double compound of that salt with nitrate of silver. It explodes 
violently when heated, and the silver must be determined as chloride. 
4-785 ... carbonic acid, and 
6:288 grains of the double salt gave 
1800 =... water. 

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