302 INFLAMMABLES. 



SIMPLE INFLAMMABLE AND ACIDIFIABLE BODIES, (not metallic,) AND 

 THEIR COMBINATIONS WITH THE PRECEDING BODIES. 



HYDROGEN SULPHUR CARBON PHOSPHORUS NITROGEN BO- 

 RON UNKNOWN BASE OF FLUORIC ACID SELENIUM. 



SEC. I. HYDROGEN. 



(a.) This inflammable body has been already described under 

 the head of water, and is here mentioned again only for the sake of 

 classing it. 



(b.) With oxygen, it forms no acid, but it forms one with chlorine, 

 as will be shewn in its place. 



SEC. II. SULPHUR. 



1. HISTORY. Known from the remotest antiquity. 



2. SOURCES. 



(a.) Volcanos, active, dormant or extinct ; sublimed by the sub- 

 terranean heat, collects in craters and solfaterras, as near Naples, in 

 Gaudaloupe, &c. 



(b.) Combined with metals, forming numerous species of native 

 sulphurets, as of iron, copper, lead, silver, &ic. sublimed from them 

 by artificial heat, but is not in this manner obtained pure ; it is con- 

 taminated with the metals, with which it was combined. 



(c.) In sulphureous mineral waters imparting a disgusting odor, 

 and the property of blackening white metals and their solutions; be- 

 ing suspended by hydrogen, it is deposited as that gas is exhaled, 

 and is found in the channels, through which the waters pass.* 



(d.) In animals and plants found more or less in all animal bo- 

 dies, as is proved by the production of sulphuretted hydrogen, dur- 

 ing their decomposition. Among plants, in the rumices or docks, 

 in the cruciform plants, as scurvy grass and cresses. 



Sulphur was sublimed by Deyeux, from roots of horse radish and 

 of dock. J 



(e.) In rocks and stones, along with gypsum and sulphate of stron- 

 tia, and even with the primitive rocks in veins, and sometimes in in- 

 durated marl and compact limestone ; arising perhaps from the de- 

 composition of sulphurets. 



* At Niagara, it oozes from the bank near the north side of the great Horse Shoe 

 fall. Own observations, Oct. 1827. 

 I Exists in eggs, in privies, in pits in which flax has been steeped, &c. 



