Abstract
The DNA and RNA content and also the thymidine and uridine incorporation kinetics were determined in peripheral lymphocytes and lymphatic cells of the tonsil. The existence of a proliferation pool of lymphoid cells in the tonsil could be established by the comparison of all data. An age-conditioned reduction of the pool size was assumed from the uridine incorporation rate which takes place faster than the organo-specific cell decrease likewise conditioned by age in the tonsil. The abscess tonsil could be explained as a pathological state with considerable reduction of proliferation.