๐”– Bobbio Scriptorium
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Visualization of cavities on ship screw propeller

โœ Scribed by W. Gorski


Publisher
IOS Press
Year
2002
Tongue
English
Weight
577 KB
Volume
5
Category
Article
ISSN
1343-8875

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The effect of darkness and temperature o
โœ L. B. Arey; W. K. Jennings ๐Ÿ“‚ Article ๐Ÿ“… 1943 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 624 KB

I t has been known for many years that the visual cells and retinal pigment of most fishes, amphibians and birds undergo marked changes of position that are correlated with light and darkness (Arey, '15; '16a; '16b). In the frog, for example, these movements are definite. The pigment granules shift