112 Scientific Intelligence. 
which with —O gives ‘PbO, in its turn paiaene re 0. to te and neu- 
hydrogen. The union of equal weights of +O and —O gives ordinary or 
neutral oxygen. ‘This view, wih is certainly mee and plausible, 
appears to be contradicted by several facts. Thus peroxyd of hydrogen, 
HO,, oxydizes acetate of lead and gives PbO,, which with excess ol 
in r , while neutral oxygen is set free Concentrated 
iodhydric acid is also decomposed bot and —O and even by 
neutral oxygen, though slowly. Schénbein endeavors to explain these 
acts by assuming that the different forms of oxygen may pass into each 
other and that certain substances possess the power of producing such a 
change. — to this view acetate of lead, a ee of iron and 
eae odhydric acid, &c., by contact convert +O into —O, a 
Tccne ind of matter the same kind of oxygen is always necessary.— 
Jemreat fur prakt. Chemie, 86, p. 30. Chemisches Contralblatt, No, iy ' 
e fundamental properties of Oxygen and Hydrogen. ee he 
pubised a pamphlet with the above title in which the views of Schén- 
to the allotropic modification of. Se are controverted. The 
author’ principal conclusions are as follow 
There are no such modifications of bisa as ozone and antozone 
Phnsphors with water and oxygen yields ordinary peroxyd of hydrogen 
a gaseous peroxyd of hydrogen of powerfully oxydizing prop 
erties whisbs is mixed in variable oe with air or oe he 
yen of hydrogen in this compound may be proved by pass 
= * 
The 
same result is obtained with the gas spi as) Wy the perme of 
gas 
peroxyd of barium by sulphuric acid and whieh Schénbein terms antozon® 
cy Pure uncombined oxygen ever possesses the properties of thesé 
3.) Powerfully aaa hitches BY obtained by saturating various 
liquid or gaseous organic compounds with oxygen. They obtain in 
this manner the properties of ‘the mins superoxyds. Oil of turpet 
tine, oil of bitter almonds, d&ec., are of this class. 
(4.) Other oils are te indifferent to starch and iodid of pou 
paper. The vapors of these oils cannot serve as carriers of oxyget 
paper, e vapors of two kinds of oil, vapors may be 
tained which neither bleach blue paper nor render white paper blue. 
(6. cases of oxydation by means of oxygen gas, whether int 
other or active 
dark or in sunlight, the oxygen never passes first into ano 
condition. The author proved that air which had been employed ' — 
