1 90 Intelligence and Miscellanies. 



it between my teeth ; and upon pressing it between them, I 

 was surprised at the distinctness with which this property 

 could be perceived. 



The quantity reduced was so small, and the balance I used 

 so poor, that I could not ascertain very accurately the spe- 

 cific gravity of the metal. It appeared however to be not 

 far from 7. 



In color, hardness, and malleability, it corresponds exactly 

 with common tin. 



" In muriatic acid, with a gentle heat, it was entirely dis- 

 solved. Hence I infer its comparative freedom from those 

 alloys which remain as a black powder when common tin is 

 dissolved in this acid. 



While the solution thus obtained was in the state of a pro- 

 tomuriate, the following tests of tin were applied. For com- 

 parative experiments, a piece of common block tin was dis- 

 solved in muriatic acid, and the same tests applied. In every 

 case the results were exactly alike. 



1. Muriate of platinum gave a deep orange precipitate. 



2. Muriate of gold, a purple do. 



3. Ferrocyanate of potassa, a white do. slight- 

 ly tinged with blue. 



*4. Perchloride of mercury, a white do. 



5. Protosulphate of iron soon acquired the reddish hue of 

 the persulphate. 



The following tests were tried to ascertain whether the 

 metal under examination were not cadmium. They are 

 given by Joyce in his Practical Chemical Mineralogy, page 

 225. Here too comparative experiments were made with 

 the solution of block tin, and the results corresponded pre- 

 cisely with those on the metal from Goshen. 



1. Pure caustic potassa gave a slight precipitate, of a 

 white color. 



2. Aqua ammonia, a white do. not so- 

 luble in excess of ammonia. 



3. Hydrosulphuret of ammonia, an orange do. inclin- 

 ing to brown. 



The second experiment would seem, according to Joyce, 

 to indicate that the metal under examination is not cadmium. 



"Joyce in his Practical Chemical Mineralogy, states that this test gives a 

 hlack precipitate with tin : but this is obviously a mistake. 



