THE STRITOTURE OF Til]!; NUCLEUS. 



14o 



was then introduced and the second exhaustion made 5 niin. after nucleation, 

 showed a fog bank 4 cm. high. Filtered air was again supplied and the receiver left 

 to itself for 15 min. The exhaustion showed the fog bank to have risen to 16 cm. 



Fig. 4. Rise of Nucleation in the Lapse of MiNUiEa (Diffusion UmvAki.) in I:i-n/.ol. 



Fig. 4.— Rise of Nucleation in the Lapse of Minutes (Diffusion Upward) in Toluol. 

 Fig. 5.— Rise of Nucleation in the Lapse ok Minutes (Diffusion Upward) in Acetone. 

 Fig. 6.— Rise of Nucleation in the Lapse of Minutes (Diffusion Upwakd) in Amyl Alcohol. 



