302 



Journal of Agricultural Research 



Vol. XV, N o. s 



Table I. — Average dry innifer of wheat {in O.OOOI gm.) produced in 21 days in sand and 

 clay mixtures, with no organic matter and containing sodium chlorid, sodium carbonate, 

 and sodiuin sulphate in various concentrations. Soils maintained at an equivalent 

 moisture content 



Table II. — Average dry matter of wheat {in o.oooi gm.) produced in 21 days in sand and 

 clay mixtures with 10 per cent peat and containing sodium chlorid, sodium carbonate, and 

 sodium sulphate in various concentrations. Soils maintained at an equivalent m,oisture 

 content 



