Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 322
f first 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. In Fig. i notice the sets of feathers markedprimaries and secondaries. This is the orderof their importance in flight, the… … A TYPICAL BIKD 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
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