102 



CONDENSATION OF VAPOR AS INDUCED BY NUCLEI AND IONS. 



The effect of the low pressure under which the water nuclei are stored 

 does not clearly appear; nor can the effect of temperature be stated. 

 The most consistent results are those of series I, in which the lowest 

 exhaustions were applied. One-third to one-half of the original ions 

 or vapor nuclei are represented by the residual water nuclei, the number 

 TABLE 44. Decay of residual water nuclei. 



'gbp. 



2 wr. 



'wog. 



4 Radium in place. 



increasing with the rapidity of evaporation. As the evaporation is 

 accentuated, the graduation of sizes lies within larger ranges. Ions are 

 efficient in the presence of water nuclei, indicating the small bulk of the 

 latter. 



