birds have built two powerful ventilating for years. Some of the . blowers in suitable places nests are quite inaccess- for passing a large quantity ible, while others can ‘be of fresh air down into the reached with a little trou- saloon and passages, the ble. Icounted six or eight exit for the air… … main engines, would make trance hole at one end. THE SHADOW BIRD AND ITS NEST. We learn from Jules this arrangement compar- atively inexpensive. Thick Verreaux that these re- The length is 20, and the breadth 40 inches. The lead or ordinary iron piping for the conveyance markable structures are…
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