We present here four cases of respiratory diseases which may be due to the exposition or to the handling of sulfur derivatives due to their professional activity. The responsibility of these compounds stands on the clinical history, biological cellular tests and for one of them on the evolution under a metabisulfite-free diet and a positive oral provocation test at 5 mg. The present economical crisis makes the patient-clinician relationship difficult, due to patients' wishing to hide their pathologies or their professional activities.
The inhibition of superficial scald in certain varieties of apple, now achieved by the use of the anti-oxidants, ethoxyquin and diphenylamine, can also be achieved by the use of oil-impregnated paper. Previously, this had been done by wrapping each apple individually in an oil-impregnated piece of paper. It has now been demonstrated that this is not necessary. Good results can be obtained by using oil-impregnated strips of paper spread uniformly throughout the carton or bin in which the apples are packed.