viii CONTENTS. 



PAGE 



17. Serum-albumin ; its characters ........ 19 



18. The circumstances whicli affect the rapidity of clotting ... 20 



19. The preparation of plasmiue 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 . 2 



SECTION II. 

 THE CORPUSCLES OF THE BLOOD. 



The Red Corpuscles. 



24. The structure of the red corpuscles ; laky blood ; stronia, and 



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



25. The number of red corpuscles in human blood; method of enumeration 34 



26. The destruction of red corpuscles 35 



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



hsmatoblasts .......... 36 



The White Corpuscles. 



28. The structure of the white corpuscles; characters of the cell-substance 38 



29. The chemical bodies present in white corpuscles 40 



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



and anabolic changes. The nature and relations of the ' granules ' ; 



living substance, food and waste . ...... 41 



31. The origin of the white corpuscles. Leucocytes ..... 44 



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



plasma. Different kinds of white corpuscles .... 45 



Blood Platelets. 

 33. The characters of blood platelets 47 



SECTION III. 

 THE CHEMICAL COMPOSITION OF BLOOD. 



34. General chemical characters 49 



35. Chemical composition of serum ........ 49 



36. Chemical composition of red corpuscles ...... 50 



37. Chemical composition of white corpuscles 51 



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 . 52 



