146 



INDEX 



cartilage, 98, 100 



Casselman, vii, 31 



catechol, 94 



cathepsin, 15 



cationic dyes, 90 



cell, structure of, 1 



cell-membrane, 3 



cellosolve, 73 



cellulose, 16 



centriole, 7, 121 



centromere, 6 



Champy, 65 



Chayen, vii 



chemical affinity for dyes, 98 



chitin, 16 



chloroform, 48 



cholesterol, 43 



chondroitic acid, 105 



chromatin, 98, 100, 109 



chromic oxide, 51, 72 



chromium trioxide, 17, 24, 27, 37, 



72 

 chromophore, 90 

 chromosomes, 5, 61, 107 

 chromotrope, 105 

 Clarke, 53, 59, 64, 73 

 'clearing agents', 73, 124 

 clot-formation, 20 

 coagulation, 20, 25, 32 

 collagen, 68, 98, 100, 101 

 colorants, 85 

 colour, causes of, 87 

 colouring agents, classification of, 



85 

 cooling of paraffin blocks, 76 

 co-ordination compound, 114 

 coverslip, sealing of, 128, 133 

 critical mordant quotient, 118 

 'critical range' of potassium di- 



chromate, 50 

 crypts of Lieberkiihn, 101 

 crystal violet, 91, 105 

 cysteine, 36, 47 

 cystine, 21 

 cytoplasmic inclusions, list of, 3 



Dactylopiiis, 95 



dahlia, 7 



dark-ground microscopy, 29 



dehydration, 72, 125 



Delafield's haematoxylin, 120 

 denaturation, 20 



density of tissue-constituents, 106 

 deoxypentose nucleic acid, see 



DNA 

 dichromate ion, 37, 49 

 differential dyeing, 98 

 differentiation, 103 



of mordant dyes, 117 

 distrene, 131, 132 

 DNA, 6, 26, 98 

 DPX, 131 

 dyeing 



causes of differential, 98 



definition of, 86 



of chromosomes, 107 



progressive, 102 



regressive, 102, 121 

 dyes 



ability to permeate, 108 



amphoteric, 100 



anionic, 100, 101 



anthraquinonoid, 92, 94 



azo, 92, 96 



cationic, 100 



chemical affinity for, 98 



chemical composition, 85 



comparison of cationic and 

 anionic, 101 



disazo, 97 



haematein, 92 



mono-azo, 92 



permeability to, 108 



quinonoid, 92 



thiazine, 92, 96 



triarylmethane, 92 



trisazo, 97 



xanthene, 92, 95 



ectoplasm, 12 



eggs of echinoids, 28 



egg-white, 77 



Ehrlich's haematoxylin, 120 



electric charge on dye-ions, 99 



electron-donor atoms, 112, 114 



electron-microscopy, 1, 5, 9, 25, 



30, 67, 78, 79, 84, 123, 128, 



135 

 embedding, 27, 29, 32, 65, 66 

 endoplasm, 12 



