8 
radio-activity, the other not, the former showed an increase of 
over 200 per cent. in peas, over 100 per cent. in beans and 
of radium ranged from 62 per cent. to 158 “ cent. With buck- 
odu 
indicated that the effects of the radium closely resemble those 
of the ultra-violet rays of the s 
Stocklasa also succeeded in synthetizing sugar by this radio- 
activity. The bearing of this fact upon the possible increase 
in sugar production by plants is momentous. It also explains 
the great increase in sweetness observed from the radium treat- 
ment of beets, carrots, tomatoes, pumpkins, squashes, melons, 
d othe fact 
summarizes as follows 
“ All of our ener point to the fact that radium emana- 
tions with a activity favorably influence the caryokinesis 
of the plant and cause toxic symptons in the cells, a ie those 
e. 
e t 300 or 400 cwts. u m. 
He ae finally, that the as of radio-activity are 
