EXPLANATION OF THE PLATES. 



PLATE (TAB.) I. 



Fig. 1. Vibrio nes, after Lebert. 

 2. Trichomonas vaginalis, after Donne. 

 3. Amaeboid corpuscles, after Wagner and Lieberkiihn. 

 4. Colourless blood-corpuscles of man, after the same. 

 5. Egg (a), and escaped embryos (b, c), of Tcenia dispar from the frog, after 



Van Beneden. At d the middle hook for boring is dotted. 

 6. Migration-passages of the brood of Tcenia Ccenurus in the brain of the sheep (a), 



and a young Ccenurus attached (#). 



6 (below). Shedding of the hooks of the migrated brood. 



7. Migration-passages of Tcenia serrata on the surface of the liver of the rabbit. 

 8. A suite of small Coenuri. 

 9. Diagrammatic representation of the development of Ccenurus and its hooks. 



PLATE (TAB.) II. 



1. Bothriocephalm latus. 



2. Uterus and egg-sacs of the same. 



3. External, and 4, internal organs of generation, magnified, after Eschricht. 



5. Eggs, closed and with embryo escaping. 



6. Cysticercus tenuicollis. 



7. Head of the same, after Eschricht. 



8. Hooks of the second row, after the same. 



9. Hooks of both rows, after the same. 



10. Uteri of Tcenia ex Cysticerco tenuicolli. 



11. Luschka's representation of the origin of the fluid of the caudal vesicle of 



Cysticerci. 



PLATE (TAB.) III. 



1 3. Eggs and embryos of Tcenia solium. 



4. Cysticercus celluloses in the flesh. 



5. The same six weeks after feeding a pig with Tcenia solium. 



6. The same in the retina of the human eye, after Von Grafe. 



