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



PLATE LXXX. 





FIG. 59. Section of fish thyroid tumor resembling the proliferating struma of I,anghans as illustrated in plate 2, 

 figure 12, of his article. X160. 



FIG. 60. Section of proliferating struma in man; original case of Langhans to be compared with figure 58. X160. 



