PATHOLOGICAL CONDITION IN A HARE. 



675 



constituted of fine concentrically-arranged lamellfe. The two 

 layers wei'e not in close apposition Ijut were separated by a 

 narrow, somewhat irregular space. The egg is thus provided 

 with a double shell. At each pole of the egg there was a small 

 circular aperture, piercing both layers of the shell. The external 

 surface of the shell presented a well-marked papillated appear- 

 ance, the papillae being irregularly rounded. Inside the shell 



Text-fig. 165. 



M.R., del. 



Eggs of a Nematode worm from the liver of a Hare. 



A. External surface of egg. B. Optical section of egg : two-celled stage. 

 C. Egg in four-celled stage with thickened inner wall: from vagina. 



there was a thin, continuous membrane investing the egg. The 

 polar apertures were each closed by a plug of homogeneous 

 material which was sepai'ate and distinct from the membrane 

 investing the egg-cells. They completely filled the apertures but 

 did not bulge beyond them. The eggs were mostly in the two- 

 celled stage, but a number of them showed four cells. 



