. Nature sketches in temperate America, a series of sketches and a popular account of insects, birds, and plants, treated from some aspects of their evolution and ecological relations . ife V/. The Bied Thebmometek ITH open mouth and panting forbreath, the indigo bird flies fromthe ground to the deep shadowsof a hickory tree beside the feature of his attitude is anexpression of the excessive heat of theJuly day. Despite his blue coat, he isnow securely hidden among the shadows,for the bright blue of his feathers issubdued several shades from his formersunlit hue. One who has taken t
. Nature sketches in temperate America, a series of sketches and a popular account of insects, birds, and plants, treated from some aspects of their evolution and ecological relations . ife V/. The Bied Thebmometek ITH open mouth and panting forbreath, the indigo bird flies fromthe ground to the deep shadowsof a hickory tree beside the feature of his attitude is anexpression of the excessive heat of theJuly day. Despite his blue coat, he isnow securely hidden among the shadows,for the bright blue of his feathers issubdued several shades from his formersunlit hue. One who has taken thesunny path along the wayside realizeswhat the shelter of the trees meansto the birds. But let us see whatthis difference in temperature reallyamounts to. I At ten in the morning, beside the shaded door of the house, the thermom-eter registered eighty-three degrees, butsee how rapidly the mercury ascends as the thermometer ischanged. In the course of a number of minutes the mercuryruns up to one hundred and sixteen degrees when the instru-ment is placed on the ground. Then, fixing the instrument inmid-air so that the air circulates about -it in the sunlight, itsoon drops to one hundred
Size: 1014px × 2463px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectbirds, booksubjectins
