on the Emanation of Phosphorus. 



339 



There is no certain tendency of the maximum to move into 

 smaller temperatures in the later experiments. Thus when 

 dV/dt = *50, nearly, 



Figure 6, maximum (ds/dt)Js Q = *20 at 20° 



Figure 7, = -20 19° 



Figure 8, = -18 20° 



Figure 9, 



12 



19°. 



Whether the phosphorus is being actually consumed, or 



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10° l 20' 30° 



whether merely a superficial change is in question will be 

 investigated below ; but the charged air current is gradually 

 further removed from saturation and will contiuue on the 

 decline in the following experiments. Moreover here is an 

 explanation of the differences of slope shown in the volu- 



