554 Intelligence and Miscellaneous Articles^ 



grms. 



Chloride of magnesium 9*466 



Chloride of sodium 6'126 



Chloride of calcium 3*152 



Chloride of potassium 1*388 



Bromide of magnesium 0*364 



Sulphate of lime 0*058 



Chloride of ammonium 0*004 



Carbonate of lime "] 



Sesquioxide of iron > 0*032 



Alumina J 



Loss 0*010 



20*600 

 Water 79*400 



100*000 

 Hence the water, taken as above, contained 206 grms. of salts in 

 a litre. No mineral water that we possess is so charged with mine- 

 ral substances ; none contains so much bromine. 



M. Roux points out that the large quantity of bromine which this 

 water contains may give it special therapeutic properties. A cubic 

 metre of the water contains upwards of 3 kilogs. of bromide of mag- 

 nesium — and, indeed, possibly more, for Gmelin found 4*393 grms. 

 in 1000 of the Dead Sea water*. — Comptes Rendus, October 5, 1863. 



DIRECT DETERMINATION OF OXYGEN IN ORGANIC BODIES. 



Messrs. Wanklyn and Frank have found that organic bodies, when 

 they are heated to redness in excess of hydrogen, evolve some, if not 

 the whole, of their oxygen in the form of water, and found upon this 

 fact at least a qualitative, if not a quantitative method of determin- 

 ing oxygen. 



ON THE VOLUMETRIC RELATIONS OF OZONE. BY M. T. L. SORETf- 



Referring to his method I of obtaining ozonized oxygen very rich 

 in ozone by means of electrolysis, the author described experiments 

 made on ozonized oxygen prepared by that method. These experi- 

 ments related to the action of iodide of potassium, of several other 

 chemical reagents, and of heat upon the gas ; and their result was 

 the same as that of Messrs. Andrews and Tait. 



Thus, having treated his ozonized oxygen with iodide of potassium, 

 M. Soret confirms the remarkable result of Messrs. Andrews and Tait, 

 that ozonized oxygen undergoes no change of volume when it acts 

 upon iodide of potassium, but liberates an amount of iodine which 

 is equivalent to a very appreciable volume of oxygen. 



With arsenite of soda a similar result was obtained, — viz., con- 

 traction insensible ; volume of oxygen which entered into combina- 

 tion with the arsenite quite appreciable. 



* Compare Boussingault's Analysis, Phil. Mag. vol. xiii. p. 504. 

 •f* Abstract by Professor Wanklyn of a Communication made to the So- 

 ciety of Natural History at Heidelberg, 17th July 1863. 

 t Phil. Mag. March 1863. 



