Lymphocyte (s) — Continued 



immature, 10, 12, 53, 163, 166. 167, 169, 170, 172, 



174, 199, 200 

 in blood spot, not a macrophage precursor, 134 

 in bone marrow, 155, 199, 200 



formation due to splenectomy, 29 ' 

 in spleen, 164, 165, 166 

 in thymus, 166, 168, 169, 172, 174 

 in tissue cuhure 



degenerated, 181 



no cell division, 181 



no differentiation, 181 

 infectious mononucleosis, 64 

 irradiation, 48 

 large, 9, 24, 48, 50, 56 



range, 66 



rare in differential count, 24, 48, 50 

 magenta granules, 47, 50, 54 



in mitosis, 53, 54 



in wild birds, 210 

 mature, 9, 10, 12, 111, 163, 167, 168, 172, 174, 



199, 200 



normal, 50-53 



not a blast cell, 48 

 medium, 9, 10, 12, 48, 50, 163, 167, 168, 169, 172, 



174, 182, 191 



an immature cell, 166, 167 



range, 66 

 mitosis, 49, 71, 170 



monocyte, comparison with, 47, 48, 52-53, 71, 214 

 nucleocytosomal ratio, 49, 51-52, 53, 68, 71, 214 

 nucleus 



chromophobic, 32, 40, 56 



mitosis, 54 



naked, 163 



larger than thrombocyte, 210 



position in cell, 51, 71 



reticular, 56 



shape, 49, 52, 62, 71 



size, 50, 62, 214 



frequency distribution, 66 



staining poor, 168 



structure, 53, 71 



relation to differentiation, 54, 166, 167 

 reactive cell 



cytoplasm vacuolated, 56 



macrophage, no transition to, 134 



wild birds, present in, 210 

 series, 10, 12, 164, 200 



in bone marrow, 200 



in thymus, 166, 174 



with monocyte, 47, 48 

 shape, 49, 50-51, 71 



blebs, 51, 54 



lobes, 50, 51 



pseudopodia, 51 

 size,49, 50,53,62, 71 



chicken, breeds, 212, 213, 214 



distribution, 66 



lack of significance, 66-67 



Lymphocyte ( s) — Continued 



small, 9, 10, 12, 48, 50. 66, 80, 163, 167, 169, 172, 



174, 182, 191 

 dwarf 



different from small lymphocyte, 130 

 related to thrombocyte, 130 

 microlymphocyte, 181 

 produce other cell types, 169 

 stem cell, 48, 104, 155, 166, 169 

 thrombocyte, separation from, 45 

 Lymphocytogenesis, lymphopoiesis, 166, 168 

 in spleen, 164, 165 

 in thymus, 54, 167-169 

 nucleolus absent, 168 

 reticular cell precursor, 168 

 Lymphoid loci, abnormal, in various organs, 181 

 Lympholeukocyte, same as monocyte, 47 

 Lymphomatosis, 86 



blood picture, not an indicator of, 45 

 in embryo, 133 

 neural, 45, 51, 85 

 ocular, 51, 85 

 relation to — 



Arneth count, 85 

 lymphoid foci in spleen, 181 

 resistance, 211, 215 

 susceptibility, 211, 215 

 visceral, 51, 85 



See also Avian leukosis complex 

 Lysin, action on erythrocyte, 26 



McDonald (1939), 154 

 McGuire and Cavett (1952), 219 

 Machado (1951), 233 

 Macrophage 

 blood spot 



fibroblast, precursor for, 134 

 lymphocyte, not a precursor for, 134 

 cytoplasmic spheres, pinched off, 134 

 embryonic, 103, 139 



common, 7 to 12 days' incubation, 134 

 in circulating blood 

 magenta granules, 134 

 response to infection, 133 

 too large for capillaries, 134 

 vacuoles, 134 

 yolk sac, 130, 134, 139 

 nucleus, large, 134 



granulation delicate, 134 

 endodermal, 134, 139 

 endothelium, 139 



hypertrophied lymphocyte, compared with, 64, 134 

 in bone marrow, 200 

 in spleen, 139, 140, 164, 165 

 in thymus, 170 

 inclusions, 139 

 nucleolus present, 139 

 post mortem effect, 139, 140 

 See also Phagocyte 

 Magath and Higgins (1934), 17, 27, 41, 67, 86, 208, 



215. 219. 231 



259 



