A capacious dish-cover of wire gauze is sufficient, resting on an earthen pan filled to the brim with fresh, heaped sand.

To obviate criminal attempts on the part of the Cats, whom the game would not fail to tempt, the cage is installed in a closed room with glazed windows, which in winter is the refuge of the plants and in summer an entomological laboratory.
Now to work.

The Mole lies in the centre of the enclosure.

The soil, easily shifted and homogeneous, realizes the best conditions for comfortable work.

Four Necrophori, three males and a female, are there with the body.