<* tHx'&tZ' tpOLIM its c, ' ' V., r tr , S V"C dNijection, Sie Steve the iodized red- nD8' Institute itmus paper of Technology, largelyy with ozone in Hoboken tains, ut Profe bhaue i AdirondtI & t , informs me that this paper, in an artificial peroxide of bh also not asifici drogen atmoep hydrogen, gives the rEoction of ozone, and tb~ft gently sensitive. He states that peroxide .9? ately been detected in the atmosphere for th i.i time by Struve, a Russian chemist. Schreiber, in bib paper (op. reiterates assertion often made before pine forests are instrumental in the production of ozone. says : It has been the custom for quite a tnend the pine valid, but th woods as a place of ' why residence process ong time to reOi for pulmonary i only recently be discovered. The turpentine exhaled from these forests 1 to a greater degree than other bodies the property !of verting oxygen air into ozone, and as the 1 destroys organic matter, the air of such forests must be, a consequently is, conducive to respiration." ' This was Scbonbein's , because'the oxydation of t oil and other essential oils in the air caused character reaction of this compound Boo. J [2] xij, :: peroxide t point of ozone on iodide lately been 511), of hydrogen, oil of turpentine are permanent. potassium. examined who finds that it cannot because "the nature by Kingzett* (Ohe be either ozone destroyed (160"), which Moreover, it temperature ,o0 resists, to a cer : extent, the action of sodium thiosulphate, and bolutionA :-water retains its properties after loog-continued boiling." Surges, the inventor of the process wood, found that the introduction of or i few prtme into his bleaohing-rgom would not o ':t formation of ozone, but would even d '-**J-U .. *A W *e t** t/.* * I.. < 4. If 3 Iy i1fly, however, 6 A.^ -~ v -J ; making pap drops of i uly pmiev fl 4-1 '-; .' aff, "^~ **?- *' >d.^L-" .