XX11 LIST OF ILLUSTRATIONS. 



FIG. PAGE 



39. Small Arterial Twig Showing the Individual Layers of the Arterial Wall, 130 



40. Capillary Vessels, 131 



41. Poiseuille's Box-cabinet Sphygmometer, 134 



42. The Tubular Sphygmometer of Herisson and Chelius, 134 



43. Marey's Sphygmograph (Diagrammatic), 135 



44. Brondgeest's Pansphygmograph Constructed on Upham's and Marey's 



Principle of the Propagation of Movement through Air-containing 



Drums Covered with Elastic Membranes, 135 



45. Landois' Angiograph Represented Diagrammatic ally 136 



46. Dudgeon's Sphygmograph, 137 



47. Sphygmographic Tracing from the Radial Artery made with Landois' 



Angiograph Attached to a Vibrating Tuning-fork, 138 



48. Landois' Gas-sphygmoscope, 138 



49. Hemautographic Tracing from the Posterior Tibial Artery of a Large 



Dog, 139 



50. Sphygmographic Tracings from Arteries, 140 



51. Normal Pulse-production of the Dicrotic Pulse, 143 



52. Alternating Pulse, 145 



53. Tracing from the Posterior Tibial Artery, Recorded on the Tablet At- 



tached to a Vibrating Tuning-fork by means of Landois' Angiograph, . 147 



54. Anacrotic Tracings from the Radial Artery 148 



55. Anacrotic Pulse Curves, 149 



56. Influence of Respiration on the Sphygmographic Tracing (RiegeF) , 150 



57. The Effect of Marked Expiratory and Inspiratory Pressure on Sphyg- 



mographic Curves, 151 



58. Paradoxical Pulse (Kussmaul) , 152 



59. Variations in the Shape of Sphygmographic Curves Produced by In- 



creasing the Pressure, : 152 



60. Method of Recording the Pulse-curves Obtained from an Elastic Tube 



on a Tablet Attached to a Vibrating Tuning-fork, 154 



61. Tracings from the Carotid and Posterior Tibial Arteries 155 



62. Tracing from the Ulnar Artery on a Recording Surface Attached to a 



Vibrating Tuning-fork, 156 



63. Vibration Curves and Apparatus for Registering Same 158 



64. Model of the Circulation by Ernst Heinrich Weber, 161 



65. Ludwig's and Pick's Kymographs (C. Ludwig and Einbrodt) 163 



66. Adolph Pick's Flat-spring Kymograph, 164 



67. Hurthle's Kymograph, 164 



68. A. W. Volkmann's Hemodromometer and C. Ludwig's Rheometer, . ... 172 



69. Vierordt's Hemotachometer; Chauveau's and Lortet's Dromograph; 



Dromographic Curve, 173 



70. Diagrammatic Representation of Cybulski's Photohemotachometer, . . . 174 



7 1 . Small Mesenteric Vessel from a Frog showing the Migration of Leuko- 



cytes, 181 



72. Various Forms of Venous Pulse, chiefly after Friedreich 186 



73. Mosso's Plethysmograph, 189 



74. Diagrammatic Representation of the Circulation 198 



75. Cross-section of Several Pulmonary Alveoli, 202 



76. Hutchinson's Spirometer, 206 



77. Brondgeest's Tambour and Curve, 208 



78. Air- volume Recorder (Pneumoplethysmograph) (Gad), 209 



79. Pneumatograms Recorded by Means of Riegel's Stethograph, 209 



80. Frontal Section of the Thorax at the Extremity of the Twelfth Rib 



on Each Side to Demonstrate the Form of the Diaphragm During 



Expiration and Inspiration, 213 



81. Diagrammatic Representation of the Mechanism of the Intercostal 



Muscles, . . 216 



82. Cyrtometer-curve from a Case of Left-sided Retraction of the Thorax 



in a Twelve-year-old Girl (Eichhorsf) , 217 



83. Sibson's Thoracometer, 218 



84. Topography of the Boundaries of the Lungs and the Heart during In- 



spiration and Expiration (v. Dusch} , 219 



85. Apparatus for the Collection of Expired Air (Andral and Gavarrei}; 



Carl Vierordt's Anthracometer, 226 



86. Respiration Apparatus of Scharling 227 



