xx TABLE OF CONTENTS. 



cattle plague ; Vessels injected with Prussian blue. Fig. 96. 

 Portion of a vessel from fig. 95, more highly magnified. 

 Fig. 97. Capillary vessels from surface of a villus, containing 

 bioplasts. Fig. 98. Capillary loop from Malpighian body 

 (injected with Prussian blue) containing bioplasts ... ... 1 88 



PLATE XXV. Fig. 99. Fat vesicles invaded by bioplasts. 

 Fig. 100. Loops of vessels from eruption of cattle plague. 

 Fig. 101. Capillary from surface of a villus, cattle plague ... 188 



PLATE XXVI. Fig. 102. Section of pustule from eruption, cattle 

 plague. Fig. 103. Fibrous tissue of the corium from the pustule 

 (fig. 102). Fig. 104. The fibrous tissue (fig. 103) more highly 

 magnified. Fig. 105. Particles of contagious bioplasm, 

 x Fig. 106. Capillary retina, calf, cattle plague. Fig. 107. Bio- 

 plasts from villus, cattle plague ... ... ... ... ... 1 88 



PLATE XXVII. Fig. 108. Vertical section of skin, cattle plague ; 

 Vessels blue, showing papillae covered with their epithelium. 

 Fig. 109. Papillae beneath eruption, cattle plague. Fig. no. 

 Plan to show how contagious bioplasm may pass from the blood 

 and reach the parallel layers of cuticular cells. Fig. 1 1 1. Young 

 cuticular cells and masses of bioplasm. Fig. 112. Minute 

 sporules of fungi, from superficial cells of cuticle ; Near erup- 

 tion, cattle plague. Fig. 113. Cuticular cells under scab, cattle 

 plague ... ... ... ... ... ... 214 



PLATE XXVIII. Fig. 114. Connective tissue corpuscles, healthy. 

 Fig. 115. Enlarged connective tissue corpuscles, cattle plague. 

 Fig. 1 1 6. Capillary from mucous membrane, fourth stomach, 

 cattle plague, injected with Prussian blue. Fig. 117. Small 

 artery, with large mass of bioplasm obstructing its cavity, in- 

 jected with Prussian blue... ... ... ... ... ... 218 



