Mark Anniversary Volume; to Edward Laurens Mark, Hersey Professor of Anatomy And Director of the Zoölogical Laboratory At Harvard University, in Celebration of Twenty-Five Years of Successful Work for the Advancement of Zoölogy
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In our eReader you can find the full English version of the book. Read Mark Anniversary Volume; to Edward Laurens Mark, Hersey Professor of Anatomy And Director of the Zoölogical Laboratory At Harvard University, in Celebration of Twenty-Five Years of Successful Work for the Advancement of Zoölogy Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Mark Anniversary Volume; to Edward Laurens Mark, Hersey Professor of Anatomy And Director of the Zoölogical Laboratory At Harvard University, in Celebration of Twenty-Five Years of Successful Work for the Advancement of Zoölogy
What reading level is Mark Anniversary Volume; to Edward Laurens Mark, Hersey Professor of Anatomy And Director of the Zoölogical Laboratory At Harvard University, in Celebration of Twenty-Five Years of Successful Work for the Advancement of Zoölogy book?
To quickly assess the difficulty of the text, read a short excerpt:
8. The structures producing metallic colors have many complex variations in surface. Individual barbules and the barb itself act as screens for portions of adjacent barbules when the angles of incidence and reflection are large, thereby reducing the total amount of surface producing metallic colors.
FROM THE SIDES OF THE NECK OF THE DOMESTIC PIGEON. 275 9. Green is obtained from these feathers when the angle made by the incident and reflected rays is less than about 90° and the incident rays ma...ke an angle of at least 48° with the plane of the feather. Purple effects appear when the angle of incident and reflected rays is greater than 100° and less than 140°, the incident rays making an angle of at least 10° with the plane of the feather. At angles greater than 140° non-metallic colors appear.
10. The refraction-prism hypothesis of Gadow ('82) is untenable, for it requires that the incident rays make an angle of more than 180° with the reflected ("refracted") rays — a physical impossibility in such a structure as the feather where the illumina- tion and color effects are necessarily dorsal.
What to read after Mark Anniversary Volume; to Edward Laurens Mark, Hersey Professor of Anatomy And Director of the Zoölogical Laboratory At Harvard University, in Celebration of Twenty-Five Years of Successful Work for the Advancement of Zoölogy?
You can find similar books in the "Read Also" column, or choose other free books by George Howard Parker to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
8. The structures producing metallic colors have many complex variations in surface. Individual barbules and the barb itself act as screens for portions of adjacent barbules when the angles of incidence and reflection are large, thereby reducing the total amount of surface producing metallic colors.
FROM THE SIDES OF THE NECK OF THE DOMESTIC PIGEON. 275 9. Green is obtained from these feathers when the angle made by the incident and reflected rays is less than about 90° and the incident rays ma...ke an angle of at least 48° with the plane of the feather. Purple effects appear when the angle of incident and reflected rays is greater than 100° and less than 140°, the incident rays making an angle of at least 10° with the plane of the feather. At angles greater than 140° non-metallic colors appear.
10. The refraction-prism hypothesis of Gadow ('82) is untenable, for it requires that the incident rays make an angle of more than 180° with the reflected ("refracted") rays — a physical impossibility in such a structure as the feather where the illumina- tion and color effects are necessarily dorsal.
What to read after Mark Anniversary Volume; to Edward Laurens Mark, Hersey Professor of Anatomy And Director of the Zoölogical Laboratory At Harvard University, in Celebration of Twenty-Five Years of Successful Work for the Advancement of Zoölogy?
You can find similar books in the "Read Also" column, or choose other free books by George Howard Parker to read onlineMoreLess
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