416 M. Peschier's Physico-chemical Inquiry into [June, 



Unfortunately Davy has not mentioned any of the properties of 

 the chloride which he formed, though there is every reason to 

 beheve that its characters must difter in several particulars from 

 those of the subbichloride of sulphur. 



From the facts stated in this paper, we may conclude that 

 cldorine and sulphm* are capable of uniting at least in two pro- 

 portions. These compounds are : 



1 . Chloride of sulphur composed of one atom chlorine + one 

 atom sulphur, or of 



Chlorine 4-5 69-23 100-0 



Sulphur 2-0 30-77 44-44 



100-00 



2. Subbichloride of sulphur composed of one atom chlorine 

 + 2 atoms sulphur, or of 



Chlorine 4-5 52-94 100-00 



Sulphur 4-0 47-06 88-88 



100-00 



It is not unlikely from the analogy of oxygen that sulphur may 

 be capable of uniting likewise with two atoms and with three 

 atoms of chlorine ; but as these compounds are not hkely to be 

 gf much utility, it might be considered as a waste of time to 

 endeavour experimentally to obtain them. 



Article III. 



Physico-chemical Inquiry into the Red Snow of the EtiviroTis of 

 Mount St. liernard.* By M. Peschier. 



The singular phenomenon of the red snow has excited much 

 attention, on account of that wliich the navigators in the 

 first arctic expedition had observed, and even collected, in these 

 high latitudes* Observations of the same kind have been called 

 to mind which were formerly made by our De Saussure in his 

 attempt to analyze the colouring matter wdiich sometimes tinges 

 the snow on the high mountains. A chemical and physical 

 examination has lately been made in London of this substance 

 brought from the arctic reo-ions, and signs of organization even 

 thought to be perceived in it. We have ourselves more than 

 once observed this phenomenon on the snow on the Alps ; and 

 a lover of mountains, who is nearly connected with us, and who, 

 like us, has the advantage of hving in coiTespondence with the 



• From llie Bibliotlieque Universelle, for Dec. 1815. 



