IT was observed in the course of some experiments on the prevention of mould growth on leather that a preparation of an organic mercurial—used in the very low concentrations of 1 in 40,000 and 1 in 20 ...

Mold fragments and spores (the microscopic reproductive units of molds) are fungi that are present everywhere on earth, in air and dust, both indoors and outdoors. No one knows how many species of ...