a h c d 



Plate 5.— Lithium Nitrate on Wheat. Season 1912. 

 (a) No treatment ; (6) '003 per cent. ; (c) 'OO^i per cent. : (d) -001 per cent, of Lithium 

 respectively in soil. 



" h c d e f 



Plate 6.— Zinc Nitrate nnd Lead Nitrate on Wlieat. Season 1912. 

 (a) -03 per 'cent. ; (6) -02 per cent.: (c)'Ol per cent, of Zinc respectively in soil: (rf) '03 per 

 cent. : (e) '02 7>er cent. ; (/) "01 per cent, of Lead respectively in soil. 



