BULL. U. S. B. F. 1912. 



PLATE CX. 



V* . --'. -( 'v 



FIG. 122. Section of dog's thyroid showing tubercle with FIG. 123. Section showing head of nematode inclosed in 



cross section of nemntode in capsule. X70. tubercle. X550. 



__3&d& 



! f ' -CT "'/F^t .^V " 

 v^'^Vr- ^ 



.'. f^ftaK\J 



u ..*" ->> 



1 



FIG. 124. Cross section of nemntode in center of tubercle, 

 in dog's thyroid. X130. 



fegx^4 Jft f3P r vV v<^ ^v 



.#>. -.*? ,>V / N ^> > ./* 



^ -*J3L^ AlHf AA!. Afc "A;.- ^ . 



FIG. 125. Healed tubercle showing no evidence of 

 nematode. X130. 



L.,- 



^ :> vJ^Ma? 



ir'' ^^ilfe^ 



f ' M- ^1* ^'^ ," ,^ ^~ *_?** lr ^ ** "* . * *- * . r *\ 



:TT -..'>'' ^~ * *_**'*^ _^^^M^^^ * , 





FIG. 126. Section of tubercle in fish showing spaces 

 evidently occupied by nematode. X240. 



FIG. 127. Section showing healed tubercle in fish. 



X130. 



