The New Encyclopędia BritannicaEncyclopędia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 101
... light reflex ; this is bilateral , so that even if only one eye is exposed to the light both pupils contract to nearly the same extent . After a time the pupils expand even though the bright light is main- tained , but the expansion is ...
... light reflex ; this is bilateral , so that even if only one eye is exposed to the light both pupils contract to nearly the same extent . After a time the pupils expand even though the bright light is main- tained , but the expansion is ...
Page 102
... light are employed for measuring the threshold , it is found , for example , that the eye is much more sensitive to blue - green light than to orange . The interesting fea- ture of this kind of study is that the subject reports only ...
... light are employed for measuring the threshold , it is found , for example , that the eye is much more sensitive to blue - green light than to orange . The interesting fea- ture of this kind of study is that the subject reports only ...
Page 108
... light - would stimulate the red and green receptors , but would have little effect on the blue ; the combined sensation would be that of yellow , which would be matched by stimulating the eye with red and green lights in correct ...
... light - would stimulate the red and green receptors , but would have little effect on the blue ; the combined sensation would be that of yellow , which would be matched by stimulating the eye with red and green lights in correct ...
Contents
would become the principal reserve asset while gold | 36 |
Excretion the elimination of the waste products of | 50 |
Volumes | 431 |
Copyright | |
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acid activity amount animals appears become blood body called carried cause cells century changes chemical close common complete consists containing continuous countries depends direction early effect evidence evolution example existence farm federal ferns fibres field Figure fire function gametophyte give groups important increase interest Italy kidney known later leaves less light lines living major marriage material means ment method move movements muscle natural normal obtained occur organs origin percent period person plants position possible present pressure problems produced properties protection reduced remain renal response result retina selection similar social species structure supply surface temperature tend tion types United urine usually various vary