LIST OF ILLUSTKATIONS. 



FIGURE PAGE 



1. Human coloured blood-corpuscles, ..... 



2. Malassez's apparatus for estimating the number of blood-corpuscle.s, . 4 

 *3. Gower's htemacytometer (Hawksley), .... 6 



4. Eed blood-corpuscles showing various changes of shape, 



5. Vaso-formative cells, ..... 



6. White blood-corpuscles, .... 18 



7. Blood-plates and their derivatives, .... 



8. Hreinoglobin crystals, ...... 



*9. Gower's haemoglobinometer (Hawksley), .... 26 



10. Scheme of a spectroscope, ...... 28 



11. Various spectra of haemoglobin, ..... 29 



12. Hremin crystals, ........ 34 



13. Haemin crystals prepared from traces of blood, ... 34 



14. Haematoidin crystals, ....... 35 



15. Scheme of Pfltiger's gas-pump, ...... 53 



16. Scheme of the circulation, ...... 65 



17. Muscular fibres from the heart, ..... 66 



18. Muscular fibres in the left auricle, ... .68 



19. Muscular fibres in the ventricles, ..... 70 

 *20. Lymphatic from the pericardium (Cadiat\ . . . . 71 

 *21. Section of the endocardium (Cadiat), . . . . .71 

 *22. Purkinje's fibres (Ranvier), .... 73 



23. Cast of the ventricles of the human heart, .... 77 



24. The closed semilunar valves, ...... 78 



*25. Various cardiographs (Hermann), ..... 81 



25a. Curves of the apex-beat, ...... 82 



26. Changes of the heart during systole, ... 83 



27. Curves from a rabbit's ventricle, ..... 86 

 *28. Marey's registering tambour (Hermann), .... 87 



29. Curves obtained with a cardiac sound, .... 88 



30. Curves from the cardiac impulse, ..... 90 



31. Position of the heart in the chest (Luschka and Gairdner). . . 93 

 31a. Bipolar nerve-cells from a frog's heart, . . . .98 



*32. Scheme of a frog-manometer (Stirling), ..... 102 



*32a. Perfusion cannula (Kronecker and Stirling), , 102 



*33. Roy's tonometer (Stirling), ... .103 



*34. Luciani's groups of cardiac pulsations (Hermann), , . , 104 



*35. Curves of a frog's heart at different temperatures (Hermann), . , J05 



36. Cardio-pneumograph of Landois, , , , .110 



