ILLUSTRATIONS. 



Fig. Page 



1. Dialyser 27 



2. Cells of parotid gland showing zymogen granules 40 



3. The nerve supply of the submaxillary gland 41 



4. The changes which take place in the position of the root of 



the tongue, the soft palate, the epiglottis and the larynx 



during the second stage of swallowing 55 



5 Diagrams of outline and position of stomach as indicated by 

 skiagrams taken on man in erect position at intervals 

 after swallowing food : 61 



6. Diagram of stomach showing miniature stomach separated 



from main stomach by a double layer of mucous membrane 62 



7. Diagram of time it takes for a capsule containing bismuth 



to reach the various parts of the large intestine 80 



8. Diagram of Atwater-Benedict Respiration Calorimeter 86 



9. Dietetic chart (colored plate) 104 



10. Cretin, 19 years old 126 



11. Case of myxo3dema 127 



12. Photographs showing before and after onset of acromegalis 



symptoms 132 



13. Thomas-Zeiss Haemocytometer 142 



14. Diagram of circulation (colored plate) 158 



15. Position of the heart in the thorax 160 



16. Generalized view of the vertebrate heart 161 



17. Diagram of valves of heart 162 



18. Dissection of heart to show auriculo-ventricular bundle 165 



19. Diagram showing relative pressure in auricle, ventricle and 



aorta 168 



20. Diagram of experiment to show how a pulse comes to disap- 



pear when fluid flows through an elastic tube when there 



is resistance to the outflow 173 



21. Apparatus for taking tracing of the blood pressure 174 



22. Apparatus for measuring the arterial blood pressure in man. . 176 



23. Jacquet Sphygmocardiograph 181 



24. Pulse tracing made by sphygmograph 182 



25. Effect of stimulating vagus and sympathetic nerves on the 



frog's heart 185 



26. Tracings of arterial blood pressure 186 



27. Curve chart 203 



28. Diagram of structure of lungs, showing larynx, bronchi, 



bronchioles and alveoli 207 



xv 



