“…These findings are consistent with the known importance of the superficial cervical lymph nodes in the translocation of plutonium from the front paws of beagles (JOHNSON et al, 1970;BISTLINE et al, 1972;BISTLINE, 1973;GOMEZ et al. 1972;GOMEZ, 1973), and the tracheobronchial lymph nodes in the translocation of plutonium from the lungs of beagles (BAIR, 1970;CLARKE et al, 1964;PARK et al, 1962). Since the popliteal lymph nodes are easier to palpate than the superficial cervical lymph nodes and are much more accessible than the tracheobronchial lymph nodes they offer obvious advantages for experimental procedures.…”