SUBJECT INDEX 



Cleavage, cell, inhibition of 



inhibitors of mitotic gelation, by, 194 

 respiratory stimulants, by, 144 

 podophyllin, effect of, 143 

 rabbit egg, in, 89 



rate of, not related to oxygen uptake, 

 144 

 furrow, determination of plane of, 139 

 Closterium, phragmoplast hollow in, 147 

 Co-acervates, 41, 51 

 Cobalt, activates usnic acid, 197 

 Cockroach 



intermitotic nuclei, 193 

 oocyte of, yolk formation in, 39 

 Coelenterates, eggs of, asymmetrical 



cleavage in, 143 

 Co-enzymes, 1 1 

 Colchicine, 86, 191 



action on tumours, 193 



as enzyme inhibitor, 193 



breaks in chromosomes caused by, 193 



effect on mitosis 



Acanthamoeba, in, 184 

 chick fibroblasts, in, 186, Plate XIV 

 Chortophaga neuroblasts, in, 184 

 Tradescantia, in, 184 

 effect on phragmoplast, 198 

 solates egg cytoplasm, 193 

 some Protozoa unaffected, 193 

 stimulates mitosis in liver, and growth in 



yeast, 193 

 without action on oxygen uptake in eggs, 

 200 

 nucleic acid synthesis in mouse, and, 

 200 

 Cold, effect of 



leakage of K from RBC's, on, 185 

 mitosis in cultures, on, 185 

 Colloid chemistrv, and living protoplasm, 



138 

 Collozoum, spiral chromosomes in, 95 

 Contractile vacuole, see vacuole, contractile 

 Contraction, of chromosomal fibres, 116 



smooth muscle compared, 127 

 Corpuscle polaire, 106, 107 

 Cortex, of eggs, 



during division, 139-144, 200 



effect of pressure on, 1 39 



equatorial ring of, and cleavage, 139, 145 



similar structure in fibroblasts, 145 

 movements beneath, during cleavage, 142 

 pigment granules in, Arbacia, 139 

 Crepidula, embryo of, growth of interphase 



nucleus, 56 

 Crickets 

 . amitosis in, 153 



negative heteropycnosis in, 44 

 Cryptomitosis, 153 

 Crypts, of Lieberkuhn, 1 7 

 Culex, larval ileal nuclei of, 151 

 Cumingia, eggs of 



inhibition in metaphase, 199 

 viscosity changes in, 136 

 Curves 



anaphase movement, 116, 127-128 

 theoretical, for cell cleavage, 144 

 Cyanide, 64, 185 



Cyanide, as inhibitor 

 mitosis 



fibroblasts, in, 189, 191 

 sea-urchin eggs, in, 190 

 respiration of, in Paramoeciutn, 189 

 vital staining of mitochondria of, 23 

 Cyclophorase system, 24 

 Cyclosis, see also protoplasmic streaming 

 auxin increases rate of, 165 

 in Elodea, sensitive to hydrostatic pressure, 



in Tradescantia, unaffected by colchicine, 



194 

 Cysteine, 171, 172 

 Cytasters, 108, see also monasters 

 Cytidylic acid, effect on mitotic rate in 



cultivated ovary, 189 

 Cytocentre, 21 

 Cytochemistry 



methods in, exactitude required, 8 



remarks on progress in, 208 



use of enzymes in, criticized, 10 

 Cytochrome, 23, 24 

 Cytogenetics, 207 

 Cytokinesis, 82, 146-149, see also cleavage 



abnormal, in plant hybrid, 147 



forms in plants, classified, 146 



inhibition of, 198-200 



in living Tradescantia cell, 146-147 

 Cytolysis, protein denaturation in, 28 

 Cytoplasm, 20-28, 51, 77 



changes during mitosis, 78, 133-149 



fibrillar state, and cell-plate formation, 



147 

 fine structure, 24-28 



diversity in, deduced by Hopkins, 179 

 macromolecular complexes in, 1 78-181 

 nucleoproteins of, 5 



whether stimulus to division originates in, 

 166 

 Cytoplasmic particles, 16, 179-180 

 Cytosine, 5 



Denaturation, protein, 28 



Devaux effect and, 28, 195 



narcotics, causing, 194 



reversible, 195 

 Dendrocoelum, oocyte of, 112 

 2-deoxy-d-ribofuranose, 5, 6 

 Deoxyribonuclease, 8-1 1, 197 



inhibitors of, 9, 197 



method of estimation, 9 

 Deplasmolysis time, as measure of perme- 

 ability, 136 

 Despair, investigators reduced to, 175 

 Devaux effect, and protein denaturation, 28, 



195 

 Diakinesis, 44, 1 13 



Dialysis of tissue culture media, 175-176 

 Diamine acids, 14 



2, 6 diaminopurine, effects on mitosis, 186 

 Diapheromera, amitosis in, 153 

 2, 4-dichlorophenoxyacetic acid, 165, 166 

 Dicyemids, central bodies of, 106 

 Di-diploid nucleus, formed experimentally, 



Differentiation, 164, 167-169 



222 



