Smithsonian Report, 1955. — Schwartz 



Plate 2 



1. Photograph of beef muscle tissue showing several bladder worms of Taenia saginata 



embedded in it. 



2. Photograph of bladder worms of Taenia solium isolated from hog muscle tissue. The 

 heads of some of the bladder worms are extruded and those of others are invaginated. 



