[Study in vapor phase of the reversible action of volatile narcotics and toxic drugs by the method of inhibition of bacterial photogenesis].

A new method is proposed in order to appreciate the potency of some volatile anaesthetics and toxics in vapour phase. The method is founded upon the classical concept of thermodynamic activity and on the reversible inhibition of bacterioluminescence tested in vapour phase. Deprived of all experimental inertia the method allows very precise kinetic studies of the various types of inhibition.