Abstract: Radioactive waste material is permanently stored without the need of constant surveillance by depositing the material in a cavity located in a rock formation above the water table and between two layers of water impervious rock. Preferably the entrance to the cavity is located in a mountainside or bluff in a layer between the two water impervious layers, which layer is more easily penetrable than the two water impervious layers. The cavity may include a passage which is reinforced with a reinforcement material such as concrete and is surrounded by a plurality of boreholes to aid in dissipating the heat of decay.

Abstract: An animal feed supplement that provides good nutrition is prepared as a homogenous, non-tacky, substantially solid mass. The supplement contains yeast having fermenting activity, a texturizing component selected from ground meal, ground legumes or mixtures thereof, a mineral mixture, a liquid binder, a vitamin mixture, and ground montmorillonite. The yeast is mixed with the texturizing component. This mixture is mixed with the mineral mixture followed by impregnating the resultant mixture with the liquid binder. The resultant mixture is then mixed with the vitamin mixture whereby the vitamin mixture is encapsulated, and the encapsulated vitamin mixture is mixed with the ground montmorillonite.