FIG. 4. EFFECT OF LIME. 



a. to d. R hubarb, e. to h. New Zealand Spinach, a. and 6., <?. and/, both receiving 

 sulphate of ammonia, a. and e. unlimed, b. and /. limed, c. and d., g. and A. both 

 received nitrate of soda, c. and g. unlimed, d. and h. limed (after Hartwell and 

 Damon 1 *. 



