Isolierung der tuberkulinaktiven Proteine aus dem Tuberkulin mit Hilfe von Dextran-Gel

Summary By filtering heated filtrates of the cultures ofMycobacterium tuberculosis human, bovine and avian type respectively through the dextran-gel Sephadex 50, it is possible to separate the tuberculoproteins from the other inactive constituents in a simple manner.     

Atmungshemmung und Karzinogenese

Summary The method proposed can be used for plast embedding of cover-slip and roller-tube cultures. The glass surface is coated with a thin silicone film to facilitate the removal of the plast. The silicone does not seem to disturb the growing cells.     

Aerial and aquatic respiration of certain trochids

Résumé La consommation d'oxygène de 4 espèces de Troques dans l'air et dans l'eau est en relation avec leur distribution dans la zone intercotidale.

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I thank ProfessorG. E. Newell for his advice.