CHEMICAL SCIENCE. 213 



order to sustain the removal of decomposing substances and their 

 products, no mere attention to ventilation and otlier mechanical 

 measures of a sanitary kind can be fully effective, unless the air 

 introduced be made active by ozone. Fever hospitals and other 

 lai-ge buildings in towns should be artificially fed with ozonized 



air. 



ANTOZONE. 



The vapors accompanying the slow combustion of phosphorus 

 have, by certain chemists, been regarded as phosphorous acid. 

 M. Sehonbein considers them to be nitrate of ammonia; while M. 

 Meissner, again, sees in them antozone. With a view of clear- 

 ing up this point, M. Osann has j^assed these vapors into solutions 

 of ammoniacal nitrate of silver and alkaline solutions of oxide of 

 lead. In the first jjlace, a black precipitate was obtained ; this 

 precipitate contained, on an average, 97.28 of silver to 2.72 of 

 oxygen, which composition corresponds to the formula AgsO. 

 The author at first thought that the oxj'gen contained in this pve- 

 cipitate was ozone, which, having more jiowerful afiinities than 

 ordinary oxygen, had displaced the latter in the oxide of silver; 

 but the oxidizing nature of ozone has caused him rather to attrib- 

 ute the formation of this body to a deoxidizing action such as 

 produces antozone. He afterwards passed the same vapors, first 

 into an alkaline solution of pyrogaliic acid, to retain the ozone ; 

 then, partly into one of Woolf's bottles containing a little water; 

 partly into an ammoniacal solution of nitrate of silver. In this 

 case the same precipitate was olitained, though all the ozone must 

 have been absorbed by the pyrogaliic acid. 



The water in Woolf 's bottle, which had remained in contact 

 with the vapors from the phosphorus, was shaken with blued 

 tincture of guaiacum, which immediately lost its color. The 

 same thing happened with nitrate of ammonia and oxygenated 

 water, but much more slowly with the latter, though it was highly 

 concentrated. Hence the author does not hesitate to say, that, in 

 his experiment, the decoloration was due to nitrate of ammonia ; 

 and, consequently, he attributes the vapors produced during the 

 slow combustion of phosphoi'us to the formation of this body. — • 

 Journal fiir Praktische Chemie. 



Mr. Alfred R. Catton, after stating the reasons which have 

 induced him to adopt the hyiiothesis of Prof. Odling on the na- 

 ture of ozone (" Chemistry Manual" of 1861), mentions the exper- 

 iments which establish the existence of antozone. He then 

 considers its properties in detail, so far as they have been hitherto 

 observed by Sehonbein and Meissner, and shows that they all lead 

 to the conclusion that antozone is peroxide of hydi'ogen, in which 

 the hydrogen is replaced by oxygen, or representing peroxide of 

 hydrogen by the formula 



H h 



Ha O (O =: 16), in accoi'dance with the views of Sir Benjamin 



Brodie (" Phil, Trans.," 1850), 



Antozone is O O O. 



Prof. Odling represents ozone by the formula O O. 



,*, 



