304 Seventijie Intelligence. 
n part second the author treats of the physical and chemical 
omy. 
In part third are discussed the various modes of producing 
Part fourth is an exposition of the theoretical views of various 
chemists relating to the so-called antozone. is is one of the 
gen antagonistic to ozone are unsound, and that the supposed anto- 
zone has in fact no existence. It must be noticed too that the 
book was published before the more recent researches, ig ge 
Wisteruad Nasse, had conclusively proved that t 
tions formerly attributed to antozone were really due, in most 
e. 
In part fifth, he discusses, by comparison, the properties of 
ozone, of ordinary oxygen, and of oxygen in the nascent or atomic 
state, with interesting theoretical considerations suggested by the 
an uppos 
Ozone from Plants” (Palermo, 1873), in which, from the fact that 
is experiments gave negative results, he concludes that the oxy- 
gen emitted by plants does not contain an appreciable proportion 
f ozone. A. W. We 
LeConte. I should have credited to Prof. T. Sterry Hunt the ee 
of the weakening of the bottom of a geosynclinal in the a 
stated. To this idea, Prof, LeConte added the view that tht 
Ee ee ee Ode ERG) pees Ae eee 3 
