SUBJECT INDEX 



Limnea, oocyte nucleolus of, 39, 40 



Links, electrovalent, 147 



Linum, inhibition of cytokinesis in, 198 



Lipoids 



cytoplasmic inclusions, as, 22, 134 



nuclear membrane, in, 52 



nucleus, in, 50-51 

 Lipoproteins 



chromosome sheath, in, 92 



RNA associated with, 51 

 Listera, mitosis in living cells of, 73 

 Liver, mammalian, 153, 193 



arginase in, 50 



chromosome size in, 62 



extracts of, inhibit fibroblast growth, 1 74 



nuclear size in, 58, 59 



nucleoli of, 39 



P^* uptake in, 16 



regeneration, 149 

 Luminescence, bacterial, 194 

 Lymphocytes, 170, 171 



leucaemic spleen, in, 64 

 Lysine, 49 



Macromolecular complexes in cytoplasm, 



178-180 

 Macroscopic conceptions, possibly mis- 

 leading, 1 1 7 

 Macrophages, in tissue culture, 170 



death in presence of embryo extract, 171 

 Magnesium, activates DN-ase, 9 



nuclei, in, 105-106 



nucleoproteins, in, 106 

 Magnetic particle method for cytoplasmic 



viscosity, 25-26, 138 

 Malpighian tubules, 96 

 Malonate, 189 

 Mammary glands, 168 

 Man, chromosomes, of, loi 



mammary carcinoma, in, 63 



nucleoli, in, 42 

 Mantids, pre-metaphase stretch in, 11 2-1 14 

 Mast cells, 171 

 Matrix 



chromosomal, 72, 92, 103 



changes in hydration postulated, 93 

 Mecistorhinus, spermatocytes of, 117 

 Meiosis, 43, 70, 71, 74, 75, 90, 93, 99, 109, 



II 1-114, 1 17, 136 

 Membrane, undulating, 22 

 Meristem, rate of formation of cells in, 82, 



83 

 Merogony, 53 



Meso-inositol, counteracts colchicine, 193 

 Mesozoa, 106 

 Mesphilia, cleavage in, 143 

 Metachromatic staining, and dye polymeri- 

 zation, 1 1 

 Metaphase, 76, 77, 92, 100, 102, 104, 113- 

 114, 117, 125, 126, 128, 129, 134- 

 137, 146, 148, 151, 186, 194, 195, 199 

 duration of, 85 

 plate, 149 



prolongation of, 191, 197 

 random chromosome movement in, 191 

 5-methyl cytosine in DNA, 5 

 Methyl green, 5, 9, 36, 103 



Methyl green, not specific for DNA, 3 



stains high polymer nucleic acids, 36 

 2-methyl i, 4 naphthoquinone (Synkavit) 



action on Arbacia eggs, 193 



tissue cultures, on, 193 

 Methylene blue, 5, 10, 11, 103 



cytoplasmic basophilia, and, 5 



vital staining of mitochondria with, 23 

 Micelles, sub-microscopic, in the spindle, 



III, 129, 132 

 Micrasterias, nucleoli of egg, 41 

 Microcolorimetric estimations for DNA, 7, 

 102-103 



calibration of, 35-37 

 Micro-dissection, 51, 145 



chromosomes, 97, 100 



subjective estimates of viscosity based on, 

 136 

 Micro-incineration, 52, 104-106 

 Microscope, vii, 70 



bright-field, 31, 32, 71, 119 



dark-field, 21, 22, 31 



electron, 20, 22, 24, 52, 97, 99, loi, 105, 

 121, 122 



phase-contrast, 20-22, 30, 31, 33, 51, 71, 

 78, 79. 93> 94. 100, 120, 152, 184 



polarizing, 52, 97, 120 



ultraviolet, 33 



phase-contrast, 24 

 Microspectrometry, 8, 11-13, 47 



difficulties of identifying proteins by, 12 



ultraviolet, in, 11, 102, 104 

 Microsomes, 24, 179 



possible origin in nucleus, 181 

 Migration 



cataphoretic, of nuclear contents, 1 1 9 



cell, and mitosis in tissue cultures, 172, 



175 

 Millon reagent, 104 



protamines not detected by, 2 

 Mitochondria, 20, 22-24, 5i. '79. Plate I 



arrangement of, 25 



changes during mitosis, 134 



enzymes associated with, 24 



mobility of, 23 



size of, 22 



stained by Janus green, 23 



surface of, whether membranous, 23 

 Mitosis, vii, 70-81 



cytoplasmic changes in, 133-149 



duration of, 82-88 



effect of hypertony on, 81 



epidermal, effect of carbohydrate on, 91, 

 187, 188 



experimental analysis of, 163-200 



inhibitory studies on, 183-200 



modifications of, 61, 149-154 



monastral, 54 



nature of stimulus to evoke, 163-183 



physiology of, and reversible gelation, 1 38 



rarity of, in adult liver, 153 



spermatogonial, 43, 44 

 Mitotic 



gelation, Heilbrunn's views on, 140 

 prevented by 



heparin, 140, 194 

 Janus green B, 194 



226 



