( 366 ) 

 TABLE XXXVITT. 



Systematic Survey of the Sequence, according to Age, of the Hainan 



Tissue-groups. 

 (Phylogenetic Classification of Vertebrate Tissues.) 



FIRST GROUP: PRIMARY TISSUES (Epithelium). 



1. FIRST HISTOLOGICAL STAGE OF EVOLUTION. 

 I. Covering-tissue (Epithelium). 



A. Skin-covering tissue (EpMelium de 



Intestinal covering tissue (Epittel. pastroU). ( 1. Real intestinal epithelium 

 Intestinal layer, or Kntoderm, of Gastrula-j 2. Epithelium of the intestinal glands 

 (afterwards the intestinal-glandular layer) ( 3. ( Karliest site of origin of egg-cell ;) 



SECOND GROUP: SECONDARY TISSUES. 

 (All derived from the Covering-tissue, or Epithelium.) 



2. SECOND HISTOLOGICAL STAGE OF EVOLUTION. 

 II. Coimoctive-tissue (Comuvtleiun). 



II. C. Filling-up tissue (Tda conjunctiva) isuf.cr 1^ Fattv1ttaue WU * 

 [surrounding] connec.ive tissue) \ 3 ' Jgjgjj ua 



II. Z>. Supporting tissue (Tito skeleta.is) (firmer f *' CarUlurh^'r tissue 

 Supporting] connective tissue) } 6 ; Bone .' t f SMIr 



III. 8. Nerve-tissue (TVZa 

 nertxa). Original outi-r 

 portion of the nerve- 

 muscle cells of the 

 Exoderm 



III./ 1 . Muscle-tissue (Tela 

 muscularis) Original 

 inner portion of the 

 nerve-muscle cells of 

 the Exodurm 



3. THIRD HISTOLOGICAL STAGE OP EVOLUTION. 

 III. Nerve-muscle Tissue (Neuro-musculum). 



1 Nerve-cells ( 1. o. Peripherie nerve-cells (Hod-cells ol 



(Ganglion-cells) ^ > ASfSSSBSSftuW* lh) 



i 2. a. Sheath less nerve-fibres (p.ile, or 



2. Nerve-fibre- ) medulla-less fibres) 



(Nerve-tubes) } 2. 6. Sheathed nerve-fibres (dark fibres 



(. with medulla) 



1. One-celled muscle- fl. a. Smooth contractile fibre-colls 



fibres (16. Striped contractile fibre-cell* 



2. Many-celled muscle- J 2. a. Smooth muscle-ma.-ses 



fibres ( 2. b. Striped muscle-masses 



4. FOUUTH HISTOLOGICAL STAGE OP EVOLUTION. 

 IV. Vascular Tissue (Vasalium). 



. 1. a. Exocoelarium (Parietal Co?lom-epl- 

 rinm I thelium) (and secondary site of 



*^ P.i.h, ) origin of the sperm-cells?) 



lh!m m * e l" Ul ' \ 1 b. Endoccelarium (Visceral ccelom-epi- 

 thelium) (and secondary site of 

 \ 



IV. G. Vascular lining tissue 

 (Ikla vasalis). Inner 

 wall-covering of the 

 Coelom system 



origin of the egg-cells ?) 

 (2.0. Endothelinm of the lymph-vessels 

 ( 2 b ~ Kndothelium of the blood-vessels 



. Lymph-tissue (TWa I 



lymphaticd). Liquid I 1. Lymph (Colourless blood-cells and fluid intercellular substance) 



contents of the Cut-lorn 1 2. Bluod (Ked blood-cells and fluid intercellular sub tance) 



system 



Hum) 



