PLATE XLI. 

 SECTIONS OF C^CUM SHOWING TltlCHOSTBONGYLUS PERGBACILIS. 



Fig. 5. 



Fig. 6. 



Vn.. 7. 



Fic. 8. 



Fill. 9. 



Fic;. 10. 



Fig. 5. (x5) .shuwing the internal surf.iou of the eiveum of a. norninl Grouse (No. 81) .after gentle washing. Several ridges 



are seen, .'■ome of which die away neiir the centre of the specimen. The whole surface is covered with small villi. 

 Fli;. 6. ( xfi) showing the intern.'il surface of the c;ccnm of an apparentlv healthy wild Gmuse (Xo. 69) after gentle washing. 



The ridges are greatly developed, and the villi larger and more prominent than in the preceding figure. A few worms 



c.in he seen. 

 Fig. 7. (x5) showing the internal surface of the cu'cum of a diseased Grouse (No. 73) after gentle washing. The ridges are 



very broad, and the villi in some places hypertrophied («). In one situation the villi are so matted together that they 



are almc)st indistinguishable (/-). At this spot a mass of ilry material adhered to the ridge. 

 Fig. 8. ( > 0) showing the internal surface of the cax-nui of a diseased Grouse (No. 12) after gentle wasliijig. The ridgos are 



very iiromincnt, hut the villi are matted together to such a degree with cementing material that they are almost 



indistinguishable. Some tif the ridges are united with the same material {a, /»). 

 Fig. 9. ( ■■ 100) sluiwing two specimens of T. y>'vy/rf«-f7('.« in section in the epitheliinn covering a villus. 

 Fig. 10. ( xlOO) showing a specimen of T. jirri/riicilix in section siuTounded by a ring of fibrous tissue. 



(lp/)osilc p. 285. ] 



