PLATE XXVI. 



DISEASE GERMS. CATTLE PLAGUE. 

 Fig. 102. 



Vertical section through the centre of a well-marked papule (pustule ' ) from the udder of a 



cow, with cattle plague, sent by Mr Ceely, January 14th, 1866. The eruption and roseoloid 



rash were well marked. There were also numerous scales ; a is the central softened 



portion of the papule. Natural size. 



Fig. ICQ. 



Fig. 104. 



A portion of Fig. 103. magnified '00. The masses of 

 contagious bioplasm can be seen dividing and 

 subdividing into new portions which are growing 

 rapidly and invading the bundles of white fibrous 

 tissue, p. 183. 



FlS. 106. 



Fibrous tissue of the corium or true skin f>-om the 

 softened part of the papule, o. Fig. 102. The intervals 

 between the fibres occupied -with bioplasm (disease 

 germs) growing and multiplying rapidly, x 215. p. 188. 



Fig. 105. 



c c a 



Capillary. Eetina of calf (cattle plague) showing 



enlarged nuclei, a, of the walls projecting into the 



interior of the vessel 6, enlarged white blood 



corpuscle c, c, c, red blood corpuscles. X 700. 



Fig. 107. 



Minute particles of contagious bioplasm 

 from the fibrous tissue of the skin., 

 beneath the eruption. (Fig. 101.) X 1 tOO. 



Masses of bioplasm from the external 

 surface of avillus, cittle plague, x 7>.0 



gLji of an inch . 



x 215. 



700. 



fTo follow plate XXV 



