PLATE XCV. 



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



FIG. 91. Section of thyroid showing spontaneous recovery from carcinoma of the thyroid. Early stage. Wild 

 Wisconsin brook trout. Fish No. 2099 A. X86. 





FIG. 92. Section showing spontaneous recovery from experimentally induced carcinoma of the thyroid in wild 

 Wisconsin brook trout. Fish No. 2099 B. X86. 



