Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
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Página 9
... called general sensibility , or common sensation . This is a mere sense of contact , an indefinite response to external impression . It gives knowledge of externality - of the existence of the external world- but not of the properties ...
... called general sensibility , or common sensation . This is a mere sense of contact , an indefinite response to external impression . It gives knowledge of externality - of the existence of the external world- but not of the properties ...
Página 10
... called smells , and no- thing else . If , therefore , these nerve - fibers are irritated in any way , even mechanically , by scratching or pinch- ing , they do not feel but perceive an odor . The second pair of cranial nerves - the ...
... called smells , and no- thing else . If , therefore , these nerve - fibers are irritated in any way , even mechanically , by scratching or pinch- ing , they do not feel but perceive an odor . The second pair of cranial nerves - the ...
Página 14
... called the sense - organ . It is of the most highly specialized of these nerves and the most refined of these instruments , the highest of the sense - organs , the eye , that we are now about to treat . It may be well to bear in mind ...
... called the sense - organ . It is of the most highly specialized of these nerves and the most refined of these instruments , the highest of the sense - organs , the eye , that we are now about to treat . It may be well to bear in mind ...
Página 18
... called the conjunctiva . Illustrations . In ordinary inflammations of the eye , it is this mucous membrane which is affected , and not the eye proper . Disease of the eye proper is a far more serious matter . When motes get into the eye ...
... called the conjunctiva . Illustrations . In ordinary inflammations of the eye , it is this mucous membrane which is affected , and not the eye proper . Disease of the eye proper is a far more serious matter . When motes get into the eye ...
Página 20
... called the sclerotic . is partly exposed in the living eye , and is called the " white of the eye . " By its strength , toughness , and elasticity it gives form without rigidity . On this ac- count the ball yields to pressure , but ...
... called the sclerotic . is partly exposed in the living eye , and is called the " white of the eye . " By its strength , toughness , and elasticity it gives form without rigidity . On this ac- count the ball yields to pressure , but ...
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Términos y frases comunes
angle axis bacillary layer binocular eye binocular perspective binocular vision camera central spot ciliary muscle circle colors combined images cones corresponding points cross depth of space distant objects distinct double images evident exactly Experiment external images eyes by squinting farther fibers field of view figures finger focal adjustment foreground forms of perspective gaze heteronymously homonymously horizontal horopter identical points impression inches inclination interocular space inverted jects left eye lens less convergence light line of sight look median plane monocular images motion muscles naked eyes nearer nose object or scene oblique observer ocular optic axes optic chiasm optic convergence optic nerve outward parallel perceived perception of depth perfect image perfectly point of sight position projection rays refractive represent retina retinal images right and left right eye rotation sclerotic screen seen single side stereoscope stereoscopic pictures surface tion torsion turn the eyes unite visual lines visual result