LIST OF ILLUSTRATIONS 



KIO. PAGE 



19. The Orifices of the Heart seen from above 50 



20. Transverse Section through the middle of the 



Ventricles of a Dog's Heart in Diastole and in 

 Systole. (After Hesse) 52 



21. Diagram to illustrate the Action of the Heart . 54 



22. Diagi-am to illustrate the Position of the Vaso- 



Motor Centre 71 



23. Diagram to illustrate the Position of the Cardio- 



Inhibitory Centre 76 



24. Portion of the Web of a Frog's Foot seen under a 



low Magnifying Power 78 



25. Very small Portion of Fig. 24 very highly 



Magnified 81 



26. The Lymphatics of the Front of the Right Arm 85 



27. The Thoracic Duct 87 



28. Connective Tissue Fibres 88 



29. Epithelioid (Jells Lining the Lymphatics .... 89 



30. Diagrammatic Representation of a Lymphatic 



(iland seen in Section. (After Sliarpey) ... 90 



31. Red and White Corpuscles of the Blood 



Magnified ... 95 



32. Crystals of Haemoglobin. (After Funke) . .99 



33. Successive Forms assumed by Colourless Cor- 



puscles of Human Blood 100 



34. Colourless Corpuscles of Blood. (Hardy) 101 



35. Network of Filaments left after washing away 



the Colouring Matter from a thin, flat Clot of 

 Blood. (Ranvier) 109 



36. To illustrate a Simple E.xperiment on Diffusion . 121 



37. A Section of the Moutli and Nose taken vertically . 130 



38. Back View of the Neck and Thorax of a Human 



Subject 131 



39. Magnified View of the Lungs . . 132 



40. Ciliated Epithelium Cells from the Trachea of the 



Rabbit, highly magnified. (Schiifer) ... 134 



41. Diagram of the Thorax sliowing the Position of 



the Heart and Lungs 136 



42. Transverse Section of the Chest, with the Heart 



and Lungs in place 137 



