[Demonstration of antibody forming cells in various calf organs]

Reported in this paper are studies relating primarily to methodical aspects of qualitative and quantitative identification of all classes of immunoglobulin-forming cells by means of fluorescent antibody in different tissues of calf. Particular attention was given to the respiratory tract. The method enables to study the postnatal development of the local secretory defence system in the context of all immunoglobulin classes.