The Bookshelf for boys and girls: Nature and Outdoor Life (1912)
University Society, New York · New York. : University Society · leaf 40
rst importance, we shouldexpect to find on closer examination that everydetail of its make-up goes to prove the fact, andthis is exactly what we do find, as shall be seen.VI—3 In Fig. I notice the sets of feathers markedprimaries and secondaries. This is the orderof their importance in flight, the… … A TYPICAL BIRD IN FLIGHT. To show loose overlapping of the flight-feathers that the air may escape between them in the upward stroke of the wings. aries, and even all of its tail-feathers as well, arealone missing. We see among all birds a generalsameness of the wing-feathers of the outer set;with…
Children's literature · Children's encyclopedias and dictionaries · Literature · Encyclopedias and dictionaries
Internet Archive · BYU–Idaho · Public Domain Mark 1.0. Free to use for anything.
![An illustration from St. Nicholas [serial] (1873)](https://img.insideoutlibrary.com/img/200/ia-stnicholasserial372dodg-322-352.webp)
![An illustration from Banbury chap books and nursery toy book literature [of the XVIII and early XIX centuries] (1890)](https://img.insideoutlibrary.com/img/200/ia-banburychapbooks00pearrich-50-128.webp)
