TRANSPLANTATION OF PERITONEAL FLUID CELLS*

Abstract
Several criteria, including survival of chimeras, Fe59 uptake, microscopic appearance of stained, fixed tissues, and serological identification of erythrocytes and nucleated hemopoietic cells, have been used to show that peritoneal fluid cells of the mouse can, on transplantation to a heavily irradiated host, proliferate and differentiate into apparently normal, permanent hemopoietic and lymphopoietic tissues. The efficiency of peritoneal fluid cells is far smaller than that of bone marrow cells and appears to be like that of white cells from circulating blood of the normal mouse.