( 258 ) 



TABLE XXXI. 



Sjstematio Survey of the Development of the Human Eye. 



I. Systematic Survey of those parts of the Human Eye which develop from the first of the 

 Secondary Germ-layers, the Skin-sensory Layer. 



Products of the 

 Marrow-plate 



Products of the 



Horn-plate 



/I. stem of the primary 

 eye-vesicle 



2. Inner (inverted) part of 



the primary eye- 

 I vesicle 



3. Outer (uuinverted) part 

 I of the primary eye- 



^ vesicle 



4. Vesicle separated from 



the horny plate 



5. Outer epidermic skin 



6. Inverted portions of the 



epidermic skin 



Optic nerve 



3. Screen, or pig- 

 ment-coat 



4. Crystalline lens 



5. Connective mem- 



brane 



6. Tear-glande 



Mrvus opticus 

 Retina 



Pigmentosa Qamina 

 pigmenti) 



Lens crystaUina 

 Conjunctiva 

 Glanduke lacrymales 



II. Systematic Survey of those parts of the Human Eye which develop from the second of the 

 Secondary Germ-layers, the Skin-fibrous Layer. 



