38 
Journal of A gricultural Research voi. v, No. i 
Fig. 38.—Curve showing the effect of various combinations of salts in different concentrations on the 
number of days to come up. Average of 15 combinations. 
o i»ooo 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 10,000 
Concentration of salts in p. p. m. 
Fig. 39.—Curve showing the effect of concentration of salts on the number of days to come up from seeds 
of various kinds. Average for sodium chlorid, sodium carbonate, and sodium sulphate. 
