[Pulmonary injury of mice produced by chronically peroral treatment with different substances (author's transl)].

Authors treated mice chronically peroral with microtoxical doses of paraquate, chromiumsulphate, berylliumsulphate and cadmiumsulphate. It becames evident, that the questioned manner of treatment causes a damage of the lungs. It develops an infiltration in the lungtissue, respectively it comes into being a great pulmonary proliferation of cells. Authors emphasize the fact, that the described pathohistological lesion of the lung develops in that case if the poisoning occurs peroral. If the above mentioned phenomenon comes into being on man similarly pneumophthiseology respectively the hygiene enriches with a new problem, with damages of the lungs produced by chemical substances dosed chronically peroral in very small quantity.