The Effects of Radio-active Ores and Residues on Plant Life. 



SERIES 1 continued. 

 EXPERIMENTS WITH POTATOES. 



Variety Sutton's Edinburgh Castle. Planted April 24. 



Only one shoot was retained on each tuber. 



Each trial consisted of four pots. 



MATERIAL USED. 



WEIGHT OF TUBERS. 



Approximate 

 COST 



Grown in 



Grown in Sterilised 



Grown in 



of dressing Grown in CTTTRTT ism Soil with Farmyard 

 4 pots. SAND. SS: Manure added at a 



cost of id. per 4 pots. 



For Trial Notes see next page. 



