Primordial osteogenic celUs) — Continued 

 smudged, squashed, 146, 148, 152 

 stem cell for — 



plasmoblast, 13, 197 

 vacuoles, 148 

 Problems for study 



absolute numbers of cell types in embryo, 114. 115 

 aging in erythrocytes, 30 

 Arneth index for normal chicken, 85 

 cellular reactions and mortality, 65 

 central granules (Always present in heterophil 



rods?). 74, S3 

 chroniophobic nucleus, 32 

 chromosomes of primary erythroblasts, 117 

 common identity of vacuoles in smears and sections 

 in primary erythroblasts, 116 

 contribution of plasma to differentiation of cells, 112, 



113 

 cytology of incipient lymphomatosis, 45 

 defense mechanism of embryo, 139 

 equivalent of toxic granules in avian heterophils, 87 

 extrusion of nuclear contents. 34 

 granulocytes of embryo (Do they become definitive 



cells?), 165 

 heterophil rods (Are they faithfully preserved in 



tissue sections?), 87 

 heterophils under phase microscope, 87 

 magenta granules, association with — 

 nucleus. 71 



pathologic conditions in lymphocytes, 64. 

 microchemistry of vacuoles in primary erythrocytes, 



116 

 normal reticulocyte values, 27 

 normalcy of leukocytes in embryo circulation. 133 

 physiology of thrombocyte disruption, 42 

 plasmosome nucleolus during mitosis. 157 

 preservation of basophil granules, 197 

 production rates in hematopoietic organs, 154 

 reactive thrombocyte, significance, 45 

 relationship of azurophilic and magenta granules, 71 

 separation of — 



abnormal cells from artifacts. 33 

 immature from medium lymphocytes, 166 

 significance of — 



erythroplastid formation, 31 

 nuclear density in erythrocytes, 23 

 size of heterophil, relationship to aging. 73 

 technic to preserve thrombocytes, 132 

 thrombocyte degeneration under phase microscope. 



47 

 thrombocyte development from sections, 157 

 Progranulocyte. 9 

 Promyelocyte. 9, 156, 194 

 atypical, 168 

 basophil. 10, 13, 78, 92, 197, 200 



combined with metagranuloblast, 10, 13 

 eccentric nucleus. 156 



eosinophil, combined with mesomyelocyte. 10. 12 

 heterophil, 10, 12, 74. 86, 142, 154, 157, 160. 188, 



200 

 Protopterus ethiopicus, 167 

 Pseudoeosinophil, 47 



Pycnosis, pycnotic 

 nucleus, 30 



erythrocyte, 20, 23, 30 

 thrombocyte, 45 

 vacuole formation. 30 



Quail, Arneth count, 221 

 Quarantine, Laboratory, 179 



Rabbit 



erythrocytes injected into. 26 

 immature cells of chicken and, 29 

 Ralph (1941), 231 

 Ram (19491,233 

 Rat, reticulocyte, 27 

 Reactive cells 



lymphocytes, 56, 134 



wild species, 210 

 thrombocytes, 38, 45. 46. 47 

 Red blood cells. See Erythrocyte 

 Rees and Ecker ( 1923 1 . 233 

 Rees-Ecker method. 233 



Regional Poultry Research Laboratory, 211, 212, 213, 



214, 215, 216 

 Regulus satrapa. See Kinglet, golden-crowned 

 Reptile (s) 



Iguana tuberciilata, phagocytic thrombocyte, 45 



reticulocyte, 28 



turtle 



arrangement of rods in heterophil, 74 

 box. nucleolus in immature heterophil, 6 

 Resting amoeboid cell, 139 



wandering cell, 139 



Reticular cell(s) 



acidophilic cytoplasm, 169 

 in bone marrow. 200 

 in embryo vessels, 139 

 in spleen. 164 

 in thymus, 169, 172 

 precursor for — 



lymphocyte, 164. 168 

 macrophage, 134 

 plasmoblast, 13 

 resembles — 



mesenchyme. 168, 169 

 primordial osteogenic cell, 168, 169 

 small nucleus. 169 

 Reticular tissue. 9. 169 

 Reticulocytefs). 10. 11.23 

 chicken, 28, 29 

 color, tawny, 193 

 effect of — 

 folic acid, 28 

 splenectomy, 29 

 fish, 28 

 frog, 28 

 granules. 11,23,28 



all stages of erythrocyte development, 28 

 change with maturity, 27 

 percent 

 chicks, 28 

 children, 27 



266 



