Plate 9.— The influence ol' increasing the ratio of Magnesia to Lime in soil. Season 1907. 



((I) Natural soil containing Lime '-lO per cent.. Magnesia "20 per cent. ; (h) soil contains Lime 

 "80 per cent . Magaesia '40 per cent. ; (c) soil contains Lime '80 per cent., Magnesia 

 '56 per cent.: (d) soil contains Lime '80 per cent., Magnesia '80 percent.; (e) soil 

 contains Lime '80 per cent ., Magnesia 1 per cent. 



