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Soils of the eastern United States and their use-- XXXVIII. Muck and peat
Seasonal nitrification as influenced by crops and tillage
Soils of the eastern United States and their use-- XXVIII. The Susquehanna fine sandy loam
Agricultural instruction for adults in the British empire ...
Report of a reconnoissance of the Lyon nitrate prospect near Queen, N. Mex
Paris green spraying experiments
Soils in the vicinity of Brunswick, Ga.: a preliminary report
Report on a soil survey of zone no. 1 (Gharbíya), 1921
The fixation of atmospheric nitrogen; a communication made to the Cairo Scientific Society, January 3, 1919
Observations on the Coccidae of Egypt