Copper spray substitutes Albert E. DimondJ. W. HeubergerJames G. Horsfall OriginalPaper Pages: 141 - 153
The possibility of reducing the proportion of phosphate in fertilizer applied to sandy soils John Bushnell OriginalPaper Pages: 153 - 155
Some varietal differences in wireworm injury to potatoes W. A. Rawlins OriginalPaper Pages: 156 - 158