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



PLATE LXXXV 



i<;. 69. Photograph showing tumor in a wild brook 



PIG. 70. Low power photomicrograph of the tumor of 



trout \SalveHnusfontinalis. ) 



figure 68. Note the large nodule within the tumor mass. 



^ 



N te the Spindle Cel1 character of the tl " or 



