Nucleus (i) — Continued 

 shape — continued 

 round 



erythrocyte, 18, 20 



late polychromatic, 11 

 lymphocyte, 49, 52 

 monocyte, 49 

 osteoclast, multinuclear, 13 

 thrombocyte, mature, 12 

 variability of — 



eosinophil metamyelocyte, 13 

 erythrocyte, late polychromatic, 26 

 lymphocyte, 62 

 monocyte, 63 

 size 



erythrocyte. 211. 212 



large, osteoclast, multinuclear, 13 



lymphocyte, 62, 66, 213 



monocyte, 63, 66, 67, 214 



small 



erythrocyte. 18, 20 

 plasmacvte, late immature. 14 

 thrombocvte. smaller than lymphocyte. 43 

 smudged, squashed. 18, 34, 146, 170, 172, 182 

 appearance, 39-40 

 erythrocyte, 36, 39 

 heterophil, 74 

 on adjacent cells, 39 

 stained poorly 



erythroblast. embryo, 129 

 revealed nucleolus, 129 

 erythrocyte 

 embryo, 122 

 primary, 120 

 feather sheath cell. 179 

 heterophil, 74, 83, 90 

 lymphoblast, 168, 174 

 thrombocyte, embryo, 131 

 structure 



differences among metagranuloblasts, 194 

 erythrocyte, embryo, 128 

 impression of, 70 

 inside and outside. 40 

 lymphocyte, 49, 52, 70 



so-called large, 56 

 monocyte, 49, 70 

 See a/50 Amitosis; Chromatin; Mitosis; Nucleocyto- 

 somal ratio; Nucleolus; specific cells 

 Numerical aperture (N. A.) , 224 

 Nuthatch, white-breasted iSitta caroUnensis ), 202 

 erythrocyte nucleus. 212 

 thrombocyte size, 210 



Oakberg (1949). 64, 181 



(1950), 181 



(1951), 64, 181 



Objective. 5ee Microscope 

 Ocular. See Microscope 

 Olson (1937). 84,215 



(1952), 64, 84 



Orange stained. See Heterophil; Monocyte; Osteo- 

 clast 



Orten (1934), 28, 29 



and Smith ( 1934 ) , 27 



Osgood (1935), 64 



(1938), 25 



and Ashworth (1937), 8, 9, 72. 87, 127 



Baker, and Wilhelm (1934), 27 



and Wilhelm 1 1931 ) , 231 



Osprey, erythrocyte, 212 

 Osteoblast! s), 164 



count, 200 



development from primordial osteogenic cell, 152 



immature, 10 



large young, 142, 144, 152 



mature. 10, 142 



resembles plasmac\ te, 166 

 small. 152 



term, 152 



variation with heterophil, 164 

 Osteoclast (s ) 



acidophilic granules in, 148, 152, 204 



binuclear, 142 



counts. 200 



development from primordial osteogenic cell. 152 



giant cell, only one t)'pe in bird marrow, 153 



indented by granulocyte. 142 



magenta spheres. 148, 153, 198 



mononuclear, 10, 13, 142. 148, 152, 153, 164 



multinuclear. 10. 13, 142. 153, 198, 204 



nucleolus. 153 



polarity, 198 



series, 10, 13 



term, 152 

 Osteocyte(s) 



series, 10, 13 



term, 152 

 Osteogenic cell. See Primordial osteogenic cell 

 Owl 



Arneth count, 221 



basophil smaller than in chicken, 210 



eosinophil, granule, 210 



great horned {Bubo viriiinianus) ,202 

 monocyte large, 210 



thrombocyte larger than in chicken, 210 

 Oxygen consumption, greater in immature cells than 



in mature, 29 



Pachvchromatic. See Nucleus 

 Palmer and Bielv (1935a) , 215, 217 



(193.5b). 215 



Pappenheim I Dantschakoff. 1908b), 26 

 Paridae, 202 

 Passer — 



domesticas. See Sparrow 



montanus. See Sparrow 

 Passeriformes. 202 



Passerina cyanea. See Bunting, indigo 

 Passerine, eosinophil like that of chicken, 210 

 Pathology 



air sac, white spots, 51 



blood poisoning, 85 



264 



