CONTENTS xvii 

 CHAPTER II. 



PAGE 



1. Microscopic examination of the circulating blood - - 177 



2. Anatomy of the frog's heart - 177 



3. The beat of the heart - 178 



4. Apex of the heart - - 178 



5. Heart tracings - 179 



6. Dissection of vagus and cardiac sympathetic in frog - 181 



7. Stimulation of the vagus in the frog 182 



8. Stimulation of the junction of the sinus and auricles - 183 



9. Action of muscarine and atropia on the heart - 183 



10. Stannius' experiment - 183 



11. Stimulation of cardiac sympathetic in frog 184 



12. Action of inorganic salts on heart-muscle - - 185 



13. The action of the mammalian heart - 186 



14. Action of the valves of the heart - 190 



15. Sounds of the heart - 191 



1 6. Cardiogram - 191 



17. Sphygmographic tracings - - 192 



1 8. Venous pulse tracing from jugular - - 193 



19. Polygraph tracings - - . 193 



20. Plethysmographic tracings - - 194 



21. Pulse-rate - 195 



22. Blood-pressure tracing - 195 



23. Estimation of arterial pressure in man - - 198 



24. Influence of position of the body on blood-pressure 199 



25. Effects of haemorrhage and transfusion on blood-pressure - 200 



26. The influence of albumoses on blood-pressure - 201 



27. Effect of suparenal extract on blood -pressure - 201 



28. Section and stimulation of cervical sympathetic in rabbit 202 



29. Determination of the circulation-time - - 203 



CHAPTER III. 



1. Tracing of the respiratory movements in man - 287 



2. Production of apncea and periodic breathing in man 288 



3. Tracing of the respiratory movements in animals - 288 



4. Heat-dyspncea - 290 



5. Measurement of volume of air inspired and expired - 291 



6. Cardio-pneumatic movements - 291 



7. Auscultation of the lungs - - 291 



8. Measurement of the respiratory pressure - - 292 



9. Determination of carbon dioxide and oxygen in inspired 



and expired air - - 292 



10. Estimation of carbon dioxide and water given off by an 



animal - - 294 



1 1 . Muscular contraction in the absence of free oxygen - 295 



12. Oxidizing ferments - - 295 



