Index 



2oq 



Gravatt, F., 133 

 Guyer, M. F., 10, 25, 31 

 Gynandromorphs, 187 



Hansen, E. C, 32 



Haploid, 42 



Hayes, H. K., 57, 61, 64 



Hegner, R. W., 16 



Herrick, C. J., 30 



Hertweg, R., 187 



Heterochromosomes, 182 



Heterosis, 162 



Heterozygosis, 162, 170 



Heterozygote, 44 



Homoz}-gote, 44 



Hooded rats, Castle's selection 

 experiments with, 88 



Humulus, chlorophyll inheritance 

 in, 125 



Hutchinson, C. B., 107 

 Hybridization, evolution through, 

 9, II 



Hybrid Wgor, 156 



Ikeno, S., 124 



Immunity to disease, inheritance 

 of, 20 



Inbreeding, and hybrid vigor, 177; 

 and sterility, 134 



Independent unit characters, 38 



Indeterminate variations, 9 



Inhibitory factors, 64, 67, 69 



Intersexes, 190, 194, 196, 199 



Isolation, its role in evolution, 7, 1 1 



Jennings, H. S., 24 



Jimson weed: non-disjunction in, 



114; tetraploidy in, 115; trip- 



loidy in, 115 



Johannsen, W., 44, 84 



Jones, D. F., 157, 166, 107, i74, 

 177 



Jordan, David Starr, 7 



Kceble, F., 173 

 Kempton, J. II . 152, 167 

 King, 11. I)., iss 

 Kohircuter, J. G., 156 



Lamarck. J., 2, 10, 11, 12. 10. 28 

 LancefKld, 1). E., 106 

 Lethal factors, 68, 69, no, 117 

 Light seed, effect of, 13, 14 

 Linear arrangement of genes, 07, 



105 

 Linkage, q(\ 113, 174, 184 



Locus changes. loq, ii^v •" 



Long, W. H., i^^ 



Lotsy, J. P., 9, 61 



Lychnis, sex determination in. iq3 



Malthus, T. R. s 

 Marchal, I'^l.. and Km., igi 

 Maternal inheritance, 125. 14Q 

 Matthiola, factor interactions in. 



70; non-Mendelian inheritance 



in, 126 



Mayr, H., 31 



]Melandrium, sex determination in, 



193 



Mendel, Gregor, 37, 56, 157 



Mercurialis, sex determination in, 

 196 



Metabolic rate, in sex determina- 

 tion, 188, 195, 200 



^Microorganisms, inheritance in, 24 



Mirabilis, blending inheritance in, 

 53, 72; chlorophyll inheritance 

 in, 125 



Moditicalion of unit characters, S8 



McMlifying factors, Oi, 04 



Monohybrid ratio, 44 



Moore, C. W., 131) 



Morgan. T. II., 97, nj, 187 



Mucor, sex in, io<> 



Mule, as an example of hybrid 

 vigor, lOo 



MulUr. 11. J , 110, 113, 117 



