viii CONTENTS. 



PAGE. 



The origin of colored blood-corpuscles 98 



Formation of blood from carti- Formation of blood in inflamed bone. . 100 

 lage 98 



Formation of Blood in Cartilage and Bone of Birds. By L. Schoney . 103 

 Experimental and Microscopical Studies on the Origin of the Blood- 

 globules. By A. W. Johnstone 105 



VI. TISSUES IN GENERAL . Ill 



Origin Ill 



Definition . 114 



Division 114 



1. Connective tissue 114 3. Nerve-tissue 115 



2. Muscle-tissue 115 4. Epithelial tissue 115 



The relation of living matter to the interstitial substance 115 



Life of cartilage-corpuscles 116 Blood-vessels 127 



Medullary tissue 117 Muscle-tissue 127 



Tissue of the umbilical cord .... 120 Structure-elements of the nervous system 128 



Tissue of tendon 122 Epithelial tissue 130 



Tissiie of periosteum 124 Conclusions 131 



Tissue of bone 126 Is blood a tissue ? 134 



Researches and deductions since 1873 135 



VII. CONNECTIVE TISSUE 143 



Definition and division 143 



1. Myxomatous or mucoid tissue 146 



(a) Medullary tissue 147 (c) Myxomatous tissue of the umbilical 



(b) Reticular tissue 147 cord 150 



Fat-tissue 155 



2. Striated or fibrous connective tissue 158 



(a) Delicate connective tissue dies running in a longitudinal 



composed of fibrillce or of direction 164 



comparatively thin bundles (d) Dense connective tissue composed 



of fibrillce 159 of interlacing ribbons 168 



(b) Dense connective tissue (e) Coalesced layers of elastic basis- 

 composed of coarse, interlac- substance, arranged in a sheath- 

 ing bundles 162 like manner 168 



(c) Dense connective tissue (f) Lamellated layers of fibrous inter- 

 composed of coarse bun- lacing connective tissue 169 



Researches on the Microscopical Structure of the Cornea. By 



William Hassloch 171 



Development of fibrous connective tissue 179 



Secretion theory 181 Territories 182 



Transformation theory 181 Bioplasson theory 182 



Elastic substance 182 



3. Cartilage-tissue 185 



History. By Louis Elsberg 185 



Varieties of cartilage tissue 190 



(a) Reticular or elastic cartilage 191 (c) Hyaline cartilage 195 



(b) Striated or fibrous cartilage 193 



The structure of hyaline cartilage 198 



The Structure of the Thyroid Cartilage. By Louis Elsberg 206 



Development of cartilage 212 



