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



PLATE CVIII. 



Kit;. 118. Section near periphery of enlarged thyroid of dog 18. The process is less intensive than near the center 

 ns illustrated in figure 117 and 119. Columnar epithelium, marked papillary growths into distorted alveoli. Colloic 

 absent. X160. 



