318 Scientifie Intelligence. 
bustion passed through two U-tubes containing pumice moistened 
with sulphuric acid and phosphoric oxide, then through a Liebi 
potash bulb and a tube with pumice moistened with potassium 
phorus, having shown the production of eae dioxide, the ap 
paratus was reconstructed with the greatest care so as to exclude 
organic mattet of every kind, the joints being all of ground gle 
The air, contained in a gasometer of 30 liters capacity, was assed 
slowly, two or three bubbles per second, first through a red-hot — 
last baryta water, and finally into a bell jar over mercury, 
which floated a glass pan containing the phosphorus. From t 
bell jar the ozonized air passed through two wasb bottles, the 
first containing distilled water and the second baryta water. Be 
he r 
