;7? P^^J' Berzelius and Dr, Marcet's Experiments 



latter is rapidly precipitated in spiciilar crystals. The spirituous 

 §Qlut;ion is rendered turbid, and the oily liquor precipitated by 

 thje. addition of water. The alcohol of sulphur is not soluble in 

 water, though it imparts to it some of its odour; this appears to 

 be owing to its impregnating the atmospheric air contained in 

 the water, rather than the water itself. It readily mixes, and 

 perfectly incorporates with either the fixed or volatile oils ; but 

 if it hold sulphur in solution, the latter separates in a crystal- 

 line form. It dissolves camphor very rapidly, and forms with 

 it perfectly transparent solutions. When kept for some time 

 under water, the latter being in contact with atmospheric air, 

 neither the air, nor the oily liquid, suffer any alteration. On 

 being heatedin contact with potassium, the alcohol of sulphur* 

 suffers no change or decomposition, when in its- liquid states 

 but if it be brought to the state of vapour, by the exclusion of 

 the air, and heat applied, the potassium becomes ignited in the 

 vapour, and emits a reddish flame. During this species of 

 combustion, a blackish film appears upon the potassium, (as 

 happens when potassium is burnt in carbonic acid gas), and 

 on introducing water, a greenish solution is obtained, which 

 contains a quantity of carbonaceous matter, and has the smell 

 and other propverties of hepar sulphuris. Neither mercury nor 

 amalgams of silver, or of lead, are at all acted upon by this 

 liquor, if it has been carefully distilled; but if it contain any 

 sulphur in solution, the amalgam blackens, and sulphurets of 

 silv,ef, or of lead, are produced, after which the liquor remains 

 pure, and unsusceptible of further alteration. .Mercury heated 

 to ebullition in an atmosphere of this oil, comes over unaltered, 

 and without the liquor undergoing any change. The alkalis 

 dissolve it entirely, though but very slowly. None of the 



