ILLUSTRATIONS 



FIG. PAGE 



Profile of Skeleton Frontispiece 



1. Simple tissues 18 



2. White blood corpuscles from man 20 



3. Diagram of entire circulation 22 



4. Diagram of valves of the heart 25 



5. Cross section of small artery and veins: A, artery; V, vein 27 



6. The aorta and its branches 28 



7. Apparatus for measuring the arterial blood pressure in 



man 31 



8. The position of the lungs in the thorax ....... 35 



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



bronchioles, and alveoli 36 



10. Front view of organs. Semidiagrammatic 49 



11. Diagram of the alimentary tube and its appendages . . 52 



12. The stomach and duodenum opened 56 



13. Schema of simple reflex arc 58 



14. Cross section of pancreatic tubule 60 



15. Injected lacteal vessels in two villi of human intestine . 63 



16. The microscopic structure of the liver 77 



17. Portion of transverse section of human liver 78 



18. Vertical section of human spleen 80 



19. Longitudinal section through the kidney 85 



20. Diagrammatic representation of the course of the urinifer- 



ous tubules and the kidney vessels 86 



21. The thyroid gland 95 



22. Schema of simple reflex arc 100 



23. B-rain, lateral view 101 



-4. Cortical centers in man 103 



25. Brain, mesial view 104 



26. Diagram of section of spinal cord, showing tracts . . . Ill 



13 



