Abstract: A device for protecting an area against terrestrial gastropods includes at least one barrier that includes a base for securing the barrier to the periphery of the area to be protected, a ceiling wall connected to the base, a grid extending along and spaced apart from the ceiling wall, a space between the ceiling wall and the grid, and at least one blocking means for preventing the gastropods, of the size category targeted by the barrier, from crawling in the said space. Barriers targeting small gastropods can be integrated into barriers targeting large gastropods.

Abstract: A device for protecting an area against terrestrial gastropods includes at least one barrier that includes a base for securing the barrier to the periphery of the area to be protected, a ceiling wall connected to the base, a grid extending along and spaced apart from the ceiling wall, a space between the ceiling wall and the grid, and at least one blocking means for preventing the gastropods, of the size category targeted by the barrier, from crawling in the said space. Barriers targeting small gastropods can be integrated into barriers targeting large gastropods.

Abstract: A process for the production of hydrogen bromide gas by direct combustion of bromine in hydrogen involves carrying out the combustion reaction in an apparatus chamber made of impregnated graphite, a chamber outlet composed of a cylindrical segment disposed between a converging segment and a diverging segment, and a cooling zone composed of a steel jacket in which are piled block of impregnated graphite.

Abstract: A device for the manufacture of hydrogen bromide by direct combustion of bromine in hydrogen comprising a burner, a combustion chamber of impregnated graphite and a cooling zone defined by a steel jacket in which are piled blocks of impregnated graphite.