X CONTENTS. 



PAGE 



Of the functions of organs and tissues . . . . . . 65 



Incessant changes in everything living . . . . . . 66 



Of the minute elementary parts of an organ or tissue . . 66 



Of Cells or Elementary Parts. 



Erroneous views concerning cells . . . . . . 68 



Investigation of the nature of the elementary part . . 69 



The anatomical unit or elementary part or cell . . . . 70 



Varying proportion of bioplasm in the cell. . 



Formation of the " cell" 71 



Of formed material and tissue . . . . . . 72 



Varying characters of formed matter . . . . . . 72 



Things essential to the unit or " cell" . . . . 72 



Cells not like bricks in a wall 73 



Cells contain no molecular machinery . . . . . . 73 



Nutrition of an elementary part . . . . . . 74 



Of the increase of cells . . . . . . . . 75 



Formation of Tissues. 



Cuticle or epidermis . . . . . . . . . . 75 



Examination of adult cuticle . . . . . . . 76 



Bioplasm in cuticle of different ages . . . . . . 77 



Hair, horn, nail . . . . . . . . . . 77 



Epithelial textures hardened with calcareous matter . . 78 



Formation of enamel . . . . . . . . ... 80 



Formation of dentine., . . . . . . . . . 81 



Of dentinal " tubes" 82 



Dentinal " tubes" not canals for conveying fluid . . . . 82 



Of Cells with Secondary Deposits. 



Of secreting cells . . . . . . . . . . 83 



Flask-like secreting cells . . . . . . . . 84 



Formation of different products by the same bioplasm . . 85 



Fat cell 85 



Starch cells 85 



Secondary deposits . . . . . . . . . . 86 



Of ciliated ceUs .. .. 86 



Pigment cells ' . . 88 



Salivary corpuscles . . . . . . . . . . 90 



Conversion of Bioplasm into Tissue 



Formation of epithelial tissue and fibrous tissue . . . . 92 



Formation of fibres . . . . . . . . . . 93 



Movements of bioplasm in all tissue formation . . . . 94 



Remarkable spiral fibres . . . . . . . . 94 



