Foot rot ofCucurbita ficifolia, the rootstock of cucumber, caused byNectria haematococca var.Cucurbitae L. C. P. KerlingL. Bravenboer OriginalPaper Pages: 15 - 24
Chronic discoloration of leaf tips of gladiolus and its relation to the hydrogen fluoride content of the air and the fluorine content of the leaves F. H. F. G. Spierings OriginalPaper Pages: 25 - 28