( 225 ) 



caused by conduction of heal along t lie threads, in consequence of 

 t e having increased too much. We observed: 

 June 29 1906. 



t e U men. 



27°.8 27°.15 [31] 

 27.92 

 30.00 

 30.4 30.39 the rising of the gas bubbles has finished, 



the bulbs begin to show a tendency to divide 

 30.69 0.365 rises 



30.83 0.365 at 33 



30.88 [33] 0.510 begins to descend slowly to 25 

 30.94 0.510 at 5 



30.99 0.510 on the bottom 



the separate (electrical) heating of the inner bath is stopped, 

 12 40 31.00 31.00 0.365 at 36 



0.483 begins to descend 

 12 44 31.00 [34] 0.365 between 38 and 39 



0.483 „ 21 and 22 

 d rises very slowly whereas t e was all the time kept some- 

 what higher to 2 h .50 

 12 48 0.483 between 10 and 11 



0.365 rises to the top with accelerated 



motion 

 0.483 continues to descend very slowly 

 12 52 [34.5] 0.483 has arrived at the bottom 



all except 0.510, 0.483, and 0.365 

 in meniscus 

 1 [35] 0.390 begins to rise 



1 3 0.390 between 37 and 38 with 0.405 by 



its side somewhat lower 

 1 10 0.390 between 38 and 39 with 0.421 



below it in a slanting direction 

 1 15 [35] 0.421 begins to rise, for the rest like 



li'lO'. 

 Looking from the top downward in a slanting direction 

 through the tube we observe a slight grey mist which is 

 denser in the part below the meniscus. When we look straight 

 through the tube, with a light behind the tube, the whole 

 shows a light brown colour, which is somewhat darker under 

 the meniscus. 



The bulbs continue to move slowly apart, the rising ones 



15* 



