366 Literature of Ozone. 



character, as to the proper mode or amount or propriety of ap- 

 plication, we apprehend that there have been hitherto three 

 grave instrumental difficulties. 1st. To obtain ozonized air or 

 oxygen, of knoAvn strength and of adequate purity. 2d. It is 

 doubtful whether in one form, in which the attempt has been 

 made to employ ozone in medicine, — that of "ozonized water," — 

 any ozone whatever has been present. Such was the case with 

 the "ozone water'' of Krebs, Kroll & Co., in which Kammels- 

 berg found chlorine. Since ozone is so slightly soluble in water 

 at common temperatures^ that it is extremely difficult to demon- 

 stration the fact of solution, the proposition to employ "ozo- 

 nized water " as a remedial agent opens a wide door to quackery. 

 3d. It is certain, that from the mixture of potassium permangat 

 nate and sulphuric acid, which has been and is recommended 

 as a convenient source of ozone for medical use, no ozone, bu- 

 merely chlorine and oxides of chlorine (due to impurities in the 

 permanganate) are derived. 



These errors have been exposed and the difficulties overcome. 

 There is no obstacle to having in the office of the physician, the 

 sick-room of the patient, or the wards of the hospital, ozonizers 

 suitable to each place, and adequate to supply ozonized air or 

 oxygen of known strength and purity. This being the case, it 

 remains for the therapeutist to do his part of the work, and to 

 discover when and how ozone is to be employed in legitimate 

 practice. 



Second, to detect the amount of ozone present at any time or 

 place in the atmosphere, and the role this atmospheric ozone 

 plays as a disease-excitant or prophylactic. The objections 

 which vitiate the observations hitherto made, are two in num- 

 ber : 1st. The ozonoscojDes hitherto employed, Houzeau's and 

 the Thallium test included, are all affected by some one of the 

 gaseous bodies possibly present in the atmosphere, as well as by 

 ozone. 2d. The method of conducting the observations is in its 

 nature inexact, and variations in wind, temperature, humidity, 

 etc., are allowed to increase the resultant errors. 



Advance in this direction is to be looked for, only when the 

 methods at present in use are abandoned in favor of others more 

 in harmony with those pursued in other branches of gas-analysis, 



