362- — Miscellaneous. 
ignited, and made to burn in the atmosphere of coal gas. 
The upper part of the large tube he covered with a 
sheet of perforated mica, and as the superfluity of the gas 
escaped through the mica, it was also made to burn. By 
this simple arrangement, a jet of common air was shown 
burning inside the tube, and jet of coal gas outside. He 
showed that sulphur is a combustible substance, by burning 
some in oxygen ; also, that it is sometimes a supporter of 
combustion, because copper foil catches fire.-when plunged 
into the vapour of boiling sulphur, and burns with 
a blood-red flame. Professor Frankland next sifted some 
powdered metallic antimony into a jar of chlorine gas, which 
has such a powerful affinity for the metal that it ignited it ; 
and the particles of chloride of antimony formed, fell to the 
bottom of the vessel in a shower of red-hot sparks. He also 
plunged some wool, soaked in oil of turpentine, into a jar 
of chlorine. Turpentine is composed of carbon and hydro- 
gen, and as chlorine burns, or unites with the hydrogen 
without touching the carbon, the latter filled the jar with a 
dense smoke, as black as ink. Some laughing gas was then 
distilled from nitrate of ammonia, but not administered, as 
the lecturer thought there was a possibility of its being dan- 
gerous, although he had never seen it produce any ill effects. 
Lastly, he made some phosphoretted hydrogen, which bub- 
bled up from the bottom of a jar of water, and caught fire 
spontaneously when it reached the air. Each bubble, as its 
flame burst, formed a light ring of white smoke, which 
- sailed slowly upwards. This closed the experiments. 
ANSWERS TO CORRESPONDENTS. 
J. K. L.,, Brisrot.—1. Dichloride of sulphur is a reddish-brown 
liquid; specific gravity, 1°686; it boils at 282°. It much re- 
sembles chloride of sulphur, whose specific gravity is 1°60, and 
boils at 146°. 2. Dichloride of Sona is likewise known as 
bisulphuret of chlorine. 
T. B.—* Fluxes ” are necessary in some cases of metallic reductions ; 
they dissolve impurities, protect the metal from the air, and some- 
times exert a reducing agency. 
BOOKS RECEIVED. 
The Pharmaceutical Journal, August to January. 
Hardwicke’s Science Gossip. 
The Artizan. 
Divine Origin of Mnemonics (Stokes). 
- Report of the Statistical Society of Lloyds, 1866. 
The Distinctive Characters of the Principal British Natural Orders of 
Plants. re > 
