BUU,. U. S. B. F. 1912. 



PLATE LXVIII. 



FIG. 33. Infiltration of aortic wall by alveolar carcinoma FIG. 35. Same section, higher power. Tubular struc- 



of thyroid. ture with mitoses. 



^r f 



9 i> * m * J* " c^ 1 - a * ? * i * '* 



1 art^f^L n 



# ^* 



Vic,. 34. Dniwinjr showing infiltration of surrounding .structures in the early stage of carcinoma of thyroid. 



