... of hemopoiesis. Histological examinations of spleens, livers, kidneys, and vertebral bodies indicate that the last-named location is the main site of erythropoiesis and granulopoiesis in T. manatus . This conclusion is based on the presence in the vertebrae of bone-marrow-containing diagnostic cell types...

...C. Hertzberg; D. Orlic This investigation records the chronology of events relating to erythropoiesis in the late fetal and early neonatal rabbit. The formation of the marrow cavity in the rabbit femur and the changing cell population in the extravascular spaces are described for the period from...