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TABLE YII. 



Systematic Survey of the Development of the Organic Systems of Man from 

 the Germ-layers. (Cf. Plates IV. and V.) 



/ 



Outer Primary 



Germ-layer. 



Skin-layer. 



(Animal 



Gerra-laj'er, 



Baer.) 



Exoderma. 



Lamina 

 dermalis, U. 



a. 



First 



secondary 



germ-layer. 



Skin-sensory 



layer. 



(Skin-stratum, 

 Baer.) 



Lamina 



neurodermalis, 



H. 



I. 



Ho^'n-plate. 

 Lamella ceratina. 



II. 



Marrow plnte. 

 Lamella medullaris. 



III. 



Pripaitive kidney 



plate. 



Lamella renalis. 



1. Outer-skin {epidermis). 



2. Appendages of the epi- 



dermis (hair, nails, etc.), 



3. Glands of the epidermis 



(perspiratory, sebaceous, 

 lacteal glands). 



4. Spinal marrow ) medullary 



5. Brain i tube. 



6. Organs of the senses (es- 



sential part). 



7. Primitive kidneys (?) and 



the outlets, which arise 

 from them for the sexual 

 products (perhaps from 

 the skin-fibrous layer ? ?) 



\ 



6. 



Second 



secondary 



germ-layer. 



Skin-fibrou 



layer 



(Flesh-stratum, 

 Baer.) 



lamina 

 inod-rmalis, H. 



IV. 



Leather-plate, 

 Lamella coriaria. 



Flesh -plate. 

 Lamella carnosa. 



I 



True skiu {corium,] and 

 skin-muscle stratum ? 



9. 



Trunk - muscle stratum 

 (side muscles of the 

 trunk, etc.). 



Inner skeleton (chonl, ver- 

 tebral column, etc.). 



Exocoelar ? (pai ietal coelom • 

 eplihelium). 

 12. Male germ-epithelium (ru- 

 dimentary testes) ? ? 



10 



11 



Body-Cavity (Cosloma): a space between the skin-layer and the intestinal layer, between 

 the body-wall and the intestinal wall, filled with lymph (colourless blood). 



B 



Inner 



Primary 

 Germ-layer. 



Intestinal 

 layer. 



(Vegetative 



Germ-layer, 



Baer.) 



Entoderm a, 



lamina 

 gastralis, H. 



c. 



Third 



secondary 



germ-layer. 



Intestinal- 

 fibrous layer, 



(Vascular-stra- 

 tum, Baer.) 



Lamina ino- 

 gastralis, H. 



VI. 



Vascular plate. 

 Lamella vasculosa. 



VII. 



Mesentery-plate. 

 Lamella mesenterica. 



13. Female germ-epithelium 

 (rudimentary ovary) ? .'' 



14. Endocoelar .' (visceral coe- 

 lum-epithelium). 



15. Main blood-vessels (heart, 

 primitive arteries, prim- 

 itive veins). 



16. Blood-vessel glands (lym- 

 phatic glands and 

 spleen). 



I 



17. Mesentery (mesenterium). 



18. Intestinal - muscle wall 



(and fibrous intestinal 

 membranes). 



d. 



Fourth 



secondary 



germ-layer. 



Intestinal- 

 glandular 

 layer. 



(Mucou.s-stra- 

 tum, Baer.) 



Lamina myco- 

 gastralis, II. 



VIII. 



MucoDs plate. 

 Lamella mucosa. 



{ 



19. Intestinal epithelium. (In- 

 ner cell-coating of the 

 intestinal tube.) 



20. Intestinal gland epithe- 

 lium. (Inner cell-coat- 

 ing of the Intestinal 

 glands.) 



