EFFICIENCY OF FOG CHAMBER. 



43 



Table 15. Continued. 



dp. 



s. 



Coro- 

 na. 



nX 

 io~ : 



III. Air energized by X- 

 rays; D= 60 cm. 



2 



65 



180 

 250 

 270 



340 

 350 

 370 

 370 



410 



440 



IV. Air energized by X- 

 rays; D=6oo. 



250 



150 



90 



52 



50 



46 



39 

 o 

 o 

 o 



8 



35 

 60 



57 



76 



130 



125 

 205 

 322 



322 



s. 



Coro- 

 na. 



nx 



10 



3 



V. Air energized by radi- 

 um (10 mg. 10,000 X); 

 D = o, on side. 



305 

 153 



"5 

 in 

 103 



79 

 66 



74 

 60 



32 



1-3 



.0 



VI. Air energized by X- 

 rays. 



'22.9 



5 22.9 



'22.9 



3 22.9 



00 

 no 

 140 



200 



VII. Air energized by X- 

 rays; Z?= 200 cm. 



2 



85 



105 

 125 

 135 

 135 

 130 



135 

 135 



145 

 135 



dp. 



Coro- 

 na. 



n x 

 10- 3 



VIII. Air energized by X- 

 rays; >=6oo cm.; re- 

 peated for contrast. 



300 

 310 

 320 



IX. Air energized by X- 

 rays; D= 100 cm. 



180 

 170 



160 



150 



200 



205 



195 

 130 



105 

 50 

 19 



215 



170 



X. Air energizedby X-rays; 

 D= 50 cm. from end. 



230 



220 



205 



XI. The same; Z?=5ocm. 

 Bulb more efficient. 



245 

 235 

 225 



200 



65 



240 



205 

 180 



190 

 260 



1 As intensity of ionization increases there is 



less shattering. 



2 Next day. Fog chamber absolutely tight. 



Coronas all blurred. 



3 The final use in response to new conditions. 



4 Coronas blurred and larger at the glass end of 



fog chamber. 

 *D=6oo cm. 



6 Z)= 3,000 cm. 

 1 D= 150 cm. 

 *D= 75 cm. 



9 Long waiting (} hour to 2 hours) without 



effect. 



10 Passing, as usual, through a maximum. 



11 Fog limit below ao. 



