Sight: An Exposition of the Principles of Monocular and Binocular VisionD. Appleton, 1881 - 275 páginas |
Dentro del libro
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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 . This 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 . This 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 ...
Términos y frases comunes
angle animals axis bacillary layer binocular eye binocular perspective binocular vision camera central spot ciliary muscle circle Cloth colors combined images cones corresponding points cross depth of space distance distant objects distinct divergence double images evident exactly Experiment external images farther fibers field of view gaze Helmholtz heteronymous homonymous horizontal horopter horopteric line identical points Illustrations impression inches inclination interocular space inverted jects left eye left-eye image lens light line of sight look median line monocular motion muscles naked eyes natural nearer nose oblique observer ocular optic axes optic centers optic chiasm optic convergence optic nerve outward parallel perceived perception perfect image perfectly point of sight position projection ray-lines rays refractive represent retina retinal images right and left right eye rotation sclerotic screen seen single shut side Sociology stereoscope surface T. H. HUXLEY tion torsion vertical meridian vibrations visual lines visual result vols
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