XVI Journal of Agricultural Research voi. x 



Page 

 Fig. i8. Graphs showing tlie solubility of organic matter in soil in solutions of 



sodium nitrate 566 



19. Graphs showing the solubility of organic matter in soil in solutions of 



sodium chlorid 568 



20. Graphs showing the solubility of organic matter in soil in solutions of 



sodium sulphate 569 



21. Graphs showing the solubility of organic matter in soil in presence of 



mixtures of sodium chlorid and sodium sulphate 569 



22. Graphs showing the solubility of organic matter in a soil in sodium- 



carbonate and sodium-bicarbonate solutions 576 



23. Graphs showing the protective action of sodium chlorid and sodium 



sulphate upon organic matter of the soil in the presence of sodium 

 carbonate 583 



24. Graphs showing the organic matter dissolved from soil by sodium 



carbonate and afterwards precipitated by sodium chlorid 584 



2 5 . Graphs showing the saponification of ethyl acetate by sodium carbonate 



in the presence of sodium chlorid 586 



26. Graphs showing the saponification of ethyl acetate by sodium carbonate 



in the presence of sodium sulphate 587 



Wind-blown Rain, a Factor in Disease Dissemination 



Fig. I. Graph showing the number and distribution of splash drops from five 

 0.02-c. c. drops falling 16 feet upon wet glass plate over an eighth of 

 a circle .^ 64 



