4 



CONTENTS OF VOLUME SECOND. 



THE MECHANISM OF THE CIRCULATION OF 



THE LLOOD. 



By LEONARD HILL. 



Action of Heart — Form of Heart — Valves and Papillary Muscles— Pressure in 

 Cavities — Heart Sounds — Heart Impulse— Work of Heart — Diastolic Filling of 

 Heart — Systolic Output — Action of Nerves — Cardiac Centres and Reflexes — 

 Depressor Nerve — Hemodynamics — Torricelli's Law — Poiseuille's Law — 

 General Principles of Circulation — Pressure in Arteries— Velocity of Flow- 

 Circulation Time — Effect of Change of Posture on Circulation— The Pulse — 

 The Capillary Circulation— Microscopical Examination — Rate of Flow- 

 Capillary Pressure — Blood Flow in the Veins — Pressure in Veins — Effect of 

 Muscular Movements — Rate of Flow — Influence of Respiration on Circula- 

 tion— Vasomotor Mechanism — Historical— Methods— Action of Vaso-dilators 

 — Local Tone — Traube-Hering Curves — Vasomotors of Veins — Circulation in 

 Special Parts — Cerebral Circulation — Pulmonary Circulation — Blood Flow in 

 Limbs — Renal Circulation — Mesenteric Circulation — Hepatic Circulation — 

 Splenic Circulation — Pancreatic Circulation — Coronary Circulation — Vaso- 

 motor Reflexes page 1 



THE CONTRACTION OF CARDIAC MUSCLE. 



By W. H. GASKELL. 



The Meaning of the Heart-Beat — The Sequence of the Contractions of the different 

 Parts of the Heart — The Causation of the Beat of the Heart and of the Sequence 

 of the Contractions of the Separate Cavities is the same in Warm-blooded as 

 iu Cold-blooded Animals — The Peculiarities of the Cardiac Muscle by which 

 the Rhythm and Sequence are to be explained — On Fibrillar Contraction— 

 On the Tonicity of the Cardiac Muscle — The Meaning of the Ganglion Cells 

 in the Heart, and their Relation to the Cardiac Nerves— The Nature of the 

 Action of the Cardiac Nerves : (1) The Inhibitory Nerves, (2) the Augmentor 

 Nerves, (3) the After-Action of the Inhibitory and Augmentor Nerves — The 

 Action of Certain Poisons — On the Nutrition of the Heart . . page 169 



ANIMAL MECHANICS. 



By J. B. HAYCRAFT. 



Introductory — The Movements and Positions of the Body — The Mechanism of 

 Joints— The Muscle as a Machine — The Centre of Gravity of the Body- 

 Methods of Recording Movements of the Body— Detailed Description of Special 

 Movements ' page 228 



