COOPER EDWIN L. /red./ 537,360 Phylogeny of thymus and bone marrow —bursa cells. Proceedings of an International Symposium on the Phylogeny of T and B cells, 17ew Orleans, Louisiana, 1-3 June 1976. Organized by R. K. Wright under the auspices of the Division of Comparative Immunology, American Society of Zoologists. Ed. by Richard K. Ufright and Edwin L.Cooper. Amsterdam 1976 North—Holland Publ. Co. 8° s. XIX, 325, il.