620 ANNUAL RECORD OP SCIENCE AND INDUSTRY. 



es, as a practical agent, all the advantages of the substances 

 first named. 20 A^ February 15, 1873, 164. 



OZONE WATER AS A KEMEDY. 



In a unanimous petition of a German medica. society to 

 the Prussian government in December, 1872, for further op- 

 portunity to test the effects of ozone water, it is stated that 

 this preparation (of which the quantitative analysis and elec- 

 trolytic method of manufacture were given by Professor 

 Carus in the German Chemical Society, June, 1872), has 

 proved so decidedly efficacious in malignant diphtheritis, ty- 

 phus, acute rheumatism of the joints, and against the conse- 

 quences of chronic affections of the heart, that its disinfecting 

 and tonic properties deserve to be more widely recognized, 

 especially as oxygen has already been placed in the French 

 pharmacopoeia, and English observers announce a decidedly 

 beneficial action of peroxide of hydrogen in whooping-cough, 

 although it is entirely inferior to ozone water in oxidizing 

 power. 8 C, January 23, 1873, 30. 



PRESERVATION OF UNSTABLE REMEDIES IN COMBINATION 



WITH EACH OTHER. 



Certain substances used in the materia 'inedica are extreme- 

 ly unstable in their combinations, and can not be kept for 

 any length of time, either dry or in solution, without becom- 

 ing entirely changed, and consequently more or less unfit for 

 therapeutical purposes. Among these are the proto-carbon- 

 ate and proto-iodide of iron, much used for certain affections. 

 According to Tisy, a Parisian pharmaceutist, this difficulty 

 may be remedied by mixing together powdered protoxide 

 of iron, some carbonate or alkaline iodide, and an inert pow- 

 der, the object of which is purely mechanical, and which 

 serves to separate the molecules, and prevent their chemical 

 reaction. These are to be inclosed in hermetically sealed 

 capsules, such as are commonly used in medicine, and may 

 thus be kept indefinitely. When swallowed, however, the 

 capsule is immediately dissolved, and the liquids in the 

 stomach, mixing with the powdered ingredients, cause their 

 combination and consequent action. 



The advantages of this mode of preparation are three : 

 first, it replaces a very insoluble pill by a soluble capsule; 



