_ ANIMAL PHYSIOLOGY. 
Special considerations . 
Embryological 
Evolution 
Synoptical : 
GENERAL REMARKS ON THE Senses 
Anatomical 
General principles . 
Tue Sxin as aN OrGAN oF SENSE. 
General . 
Pathological . 
Pressure sensations 
Thermal sensations 
Tactile sensibility . 
The muscular sense 
General . F 
Pathological . 
Comparative . 
Synoptical ‘ : ; 
VISION 6 we 
Physical . 
Anatomical 
Embryological 
Dioptrics of vision : 
Accommodation of the eye 
Alterations in the size of the ieee 
Phenomena and their ieee 
Pathological . 3 
Optical imperfections of the eye i 
Spherical aberration 
Astigmatism . ‘ 
Chromatic aberration . 
Entoptic phenomena 
Anomalies of refraction . 
Visual sensations . 
General . . 
Affections of the retin : 
The nature of the processes which iovigiiate visual impulses 
The laws of retinal stimulation 
The visual angle 
Color sensations 
Theories of color-vision . 
Color-blindness 
Psychological aspects of vision 
The visual field 
Imperfections of visual peneéptions as “ jrradiation,” ate, 
Influence of the pigment of the macula lutea 
After-images, etc. 
Misconceptions as to the eonipanitiee st size of objects 
Subjective phenomena . 
Co-ordination of the two eyes in vision 
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