STUDIES IN THE EFFECT OF KOKTGEN RAYS, ETC . 



209 



Table III. 



of cultivjitiou, because Vicia fulo must Ije sowu in the middle or tlie end of 

 Octoljer, l)iit iu tliis experiment it wiu^ sown on April 1, so the time was not 

 fit for uatiinil j^rowtii. But the writer supposed that it might ]k; caused, 

 on the one Lsiud, by soil-sickness (Bodeu-Miidigkeit), due to the continuous 

 cultivation of leguminous jiknts (for the former crop was pea-nut). 



Conditions were as above mentioned, so the \mter gave up the exj^wrimcut 



