CHAPTER II. 



RELATION OF THE IONIZATION AND THE NUCLEATION ASSOCIATED WITH WATER 



NUCLEI, PRODUCED IN AIR. 



IONIZATION PRODUCED BY SHAKING SOLUTIONS. 



I. Introduction. — In the present chapter there will be three subjects for 

 consideration. The endeavor n:ust first be made to detect ionization in water 

 nuclei, produced as in the former memoir,' by shaking solutions. As the 

 ionization so recognized proves to be inadequate, the problem next in order will 



Figure i. — Apparatus for Comparing Nucleation and Ionization. .4, Coronal Chamber; R, 

 Exhaustion Reservoir; M, Mariotte Flask; C", Tubular Condenser; F, (to be Inserted in the Con- 

 veyance Tube, c). Phosphorus Ionizer; ff.G', Vacuum Gauges; F, Cotton Filter; B, Storage Battery 

 Terminals. Tubes, p to Suction Pump, a to Atmosphere, c, c, for Exhaustion, e for Conveying the 

 Nuclei into the Condenser, d for Filtration, h from the Hydrant. Extremely Fine Jets of 

 Water Shoot out from the Needle-pricked Lead Pipe,/. Supports g, g, are Metallic, i,i. Insu- 

 lating. 



be the production of the maximum number of nuclei per cubic centimeter 

 possible, and will be considered in the second section of the chapter. The third 

 will then take up and examine the ionization produced along lines very similar 



' Structure of the Nucleus. Chap. V. 

 17 



