BiocHEMicAL Bulletin (Vol. III) 



Plate 5 



WILSON: STUDIES OF PLANT GROWTH IN HEATED SOIL 



Fig. 6: Rye seedlings one week after germination ; Fig. 7- Rye seedlings — 

 the same culture after the lapse of one week; Fig. 8: Barley seedlings at the end 

 of the first week. 



