A Ventilator,
and set this over a square hole cut in the roof for this purpose. The ventilator should project at least one foot and a half above ground, and the top or vent be protected by wire-netting or cross-pieces, nailed on as shown in Fig. 82. Now spread small brush over the boards, and dry leaves or straw over the brush, then shovel the dirt back in the excavation until the club-house is entirely covered; pack the soil firmly all around the house, leaving only the top of the ventilator and the front door uncovered.
Figs. 79-83.—Cross-Section of House.
When all is finished to your satisfaction, conceal the ventilator by brush or transplanted weeds or shrubs, and scatter grass and clover-seed over the new earth. Make a strong door, after the plan in Fig. 81, and fasten it on the front entrance with good hinges and a padlock, and place some brush or growing shrubs in front of the door.