Chemistry and Physics. 145 
SCIENTIFIC INTELLIGENCE. 
I. CHEMISTRY AND PHYSICS. 
. On Ozone as a cause of the Luminosity of Phosphorus.—V ari- 
ous Sonics. we coli Joubert, have called attention to the con- 
nection of the phenomena of pho osphorescence with ozone. To learn 
Gomes ine of the nature of this connection, Cuapputs has studied 
ing air, the other pure oxygen, were inverted over two dishes 
containing iodide of potassium and starch solution. A fragment 
plung nto 
have the power of preventing this luminosity of t dieepheben are 
precisely those bodies which destroy ozone or are destroyed by it. 
Oil of turpentine for example, which is the most active, destroys 
ozone completely. In a balloon containing air, phosphorus and 
I, xxxv, 419, April, 
On the appearance of Nitrous Acid during the Evaporation 
of Water.— War on has submitted to the test of careful e 
periment Schinbein’s statement that winnie pure water or an 
alkaline solution is ev yaporated, nitrite of ammonium is produced, 
and concludes that “ it is aideuiabts that pure water if evapora- 
ted to a small bulk, by ordinary means, will generally be found to 
i 
e 
Prato to the metaphenylenediamine test, after concentration to 
uarter of its bulk, showed the reaction distinetly. A liter of 
distilled water, with Bec. tiie water, evaporated to a small volume 
