Morphological changes take place, following envenomation of mouse tissues by cobra venom. The morphological changes that occur in-vitro, is of importance and needs to be studied. In the present study, kidney and skin of mouse are needed to be fixed, in a suitable fixative, for 24 48 hours. These tissues should then be processed and embedded into paraffin blocks. These blocks would then be sectioned and slides would be prepared. Haematoxylin stained tissue slide is to be used as a Control. Tissue slides are to be quenched with different percentage (usually 0.25% - 2.0%) of Hydrogen peroxide...