A Brief Account of Radio-activity
Chapter 2
PROPERTIES OF THE RADIATIONS
Ionization of Gases--Experimental confirmation--Application of electric field--Size and nature of ions--Photographing the track of the ray--Action of radiations on photographic plates--Discharge of electrified bodies--Scintillations on phosphorescent bodies--Penetrating power--Magnetic deflection--Three types of rays--Alpha rays--Beta rays--Gamma rays--Measurement of radiations--Identifications of the rays 7