Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 236
FLICKING HIS MUSCLES TO AIDCIRCULATION. Warm air is a poor conductor of heat. Forthis reason loose clothing is warmer than tight.The warm air between it and the skin preventsthe heat of the body from escaping rapidly. Birds … SHEEP STAND CLOSE TOGETHER FOR WARMTH. and other animals take advantage of this law ofnature. A sparrow in the crevice of a wall is not 172 NATURE AND SCIENCE FOR YOUNG FOLKS [Dec, only warming his feet against the sunny stone,but he is pretty sure to have his feathers sofluffed up, that he seems…
Children's literature
Internet Archive · UNC Libraries · Public Domain Mark 1.0. Free to use for anything.
![An illustration from St. Nicholas [serial], 1873, leaf 236](https://img.insideoutlibrary.com/img/1024/ia-stnicholasserial391dodg-236-307.webp)
![An illustration from St. Nicholas [serial] (1873)](https://img.insideoutlibrary.com/img/200/ia-stnicholasserial4621dodg-668-807.webp)
