1813.] 



Scientific Intelligence, 



of which we are giving an analysis, Mr. Brodie gives an account 

 of the result of his experiments on the action of some of th@ 

 most violent mineral poisons upon the animal system. The 

 following are the general conclusions drawn from these experi- 

 ments. 



1. Arsenic, emetic tartar, and muriate of barytes^ do not 

 produce their deleterious effects until they have passed into the 

 circulation. 



2. All these poisons occasion disorder of the functions of the 

 heart, brain, and alimentary canal ; but they do not all alFect 

 tliese organs in the same relative degree. 



3. Arsenic operates in the alimentary canal in a greater 

 degree than either tartar emetic or muriate of barytes. The 

 heart is affected more by arsenic than by emetic tartar^ and more 

 by this last than by muriate of barytes. 



4. Corrosive sublimate, when taken internally in a large 

 quantity, occasions death by acting chemically on the raucous 

 membrane of the stomach, so as to destroy its texture; the 

 organs more immediately necessary to life being affected in con- 

 sequence of their sympathy with the stomach. 



The Second Part of the Philosophical Transactions for 1812 is 

 published ; but want of room obliges us to defer our account of 

 it till our next Number. 



Article X. 



SCIENTIFIC intelligence; and notices of subjects 



CONNECTED WITH SCIENCE. 



I. Compound of Chlorine and Azote. 



Some time ago Sir Humphry Davy received a letter from 

 Paris, containing, among other particulars, a parag;raph to the 

 following effect : I suppose you have heard of the discovery 

 which has been made in France, of a combination of chlorine 

 and azote, a discovery, which cost the person Vv^ho made it, an 

 eye and a finger." Sir Humpliry Davy, before the receipt of 

 this letter, had made many unsuccessful attempts to produce 

 such a combination. He immediately ran over all the recent 

 French journals, to see whether he might not have overlooked 

 some account of this new compound; but could find no trace of 

 it whatever. While in this perplexity Mr. Children put him in 

 mind of a discovery made some time ago in England, by Mr. 

 Burton, who, by passing a current of chlorine through a solution 

 of nitrate of ammonia, had obtained a white oily looking sub- 

 stance, so volatile^ that he had been unable to collect it. On 



