x LIST OF ILLUSTRATIONS 



PLATE FACING PAGE 



VII. FIGS. 1-4. EXPERIMENTS ON THE BANDAGED ARM. 68 



From Harvey's work on the circulation, printed in Frankfort 

 in 1628. 



FIG. 5. DISSECTION OF VEIN IN THIGH AND LEG . 68 



From the work On the Valves of the Veins, by FABRICIUS, 

 printed in Padua, 1603. 



VIII. FIG. i. LUNGS OF FROG, SHOWING CAPILLARIES . 69 



From MALPIGHI'S work On the Lungs. Bologna, 1661. 



FIG. 2. CAPILLARIES IN THE TAIL OF AN EEL . 69 



From a letter by LEEUWENHOEK, dated Delft, 1698. 



FIG. 3. RED BLOOD CORPUSCLES OF SALMON . 69 



From a letter by LEEUWENHOEK, dated Delft, 1700. 



FIGS. 4 AND 5. HUMAN RED BLOOD CORPUSCLES . 69 



From the same letter as Fig. 3. 



FIG. 6. HUMAN RED BLOOD CORPUSCLES DRAWN 

 FROM THE OBJECT UNDER A MODERN 

 MICROSCOPE . . . . .69 



