. Fig. 4. Effect of Lime. a. to d. R hubarb, e. to h. New Zealand Spinach, a. and 6., f. 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"*.

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Keywords: ., bookleafnumber70, bookpublishernewyorkdutton, books, bookyear1918