Bull. U. S. B. F. 1912. 
Plate CX. 
Fig. 122. — Section of dog^’-S thyroid sliowing- tubercle with 
cross section of nematode in capsule. X70. 
Fig. 123. — Section showing: liead of nematode inclosed in 
tubercle. X550. 
Fig. 124. — Cross section of nematode in center of tubercle, 
in dog's thyroid. X130. 
Fig. 125. — Healed tubercle showing no evidence of 
nematode. X130. 
Fig. 126. — Section of tubercle in fish showing spaces 
evidently occupied by nematode. X240. 
Fig. 127. — Section showing healed tubercle in fish. 
X130. 
