riii CONTENTS. 



PAGE 



19. The preparation of piasmine and fibrinogen ...... 22 



20. Fibrin-ferment: its action. Nature of the process of clotting . . 23 



21. Why blood clots when shed ......... 26 



22. The influence on clotting exerted by the living blood vessels . . 27 



23. The nature of this influence ; the action of the white corpuscles . . 29 



SECTION II. 

 THE CORPUSCLES OF THE BLOOD. 



The Bed Corpuscles. 



24. The structure of the red corpuscles ; laky blood ; stroma, and haemo- 



globin ............ 31 



25. The number of red corpuscles in human blood ; method of enumer- 



ation ............. 33 



26. The destruction of red corpuscles ........ 34 



27. The formation of red corpuscles in the embryo and in the adult; 



haematoblasts ........... 35 



The White Corpuscles. 



28. The structure of the white corpuscles ; characters of the cell-substance 36 

 29. The chemical bodies present in white corpuscles ..... 37 

 30. The white corpuscles as a type of living matter; metabolism, kata- 

 bolic and anabolic changes. The nature and relations of the 

 4 granules ' ; living substance, food and waste ..... 39 

 31. The origin of the white corpuscles. Leucocytes . . ' . . .42 

 32. The disappearance of the white corpuscles. Their influence on the 



plasma. Different kinds of white corpuscles ..... 43 



Blood Platelets. 

 33. The characters of blood platelets ........ 44 



SECTION III. 

 THE CHEMICAL COMPOSITION OP BLOOD. 



34. General chemical characters ......... 46 



35. Chemical composition of serum ........ 46 



36. Chemical composition of red corpuscles ...... 47 



37. Chemical composition of white corpuscles ...... 48 



SECTION IV. 

 THE QUANTITY OF BLOOD AND ITS DISTRIBUTION IN THE BODY. 



38. The determination of the quantity of blood in the body, and the main 



facts of its distribution . 49 



