INDEX OF SUBJECTS 





Lychnis dioica and vespertina, in- 

 ter-relations of jS 



macrocarpa, possibly a common 



parent of. 



ig 



Blaringhem's experiments 



28 



230 



Machetes pugnax, polymorphism of 



male 



Maize 

 on. 



Maize, cumulative factors in 116 



Malformations, dominants, arising 



de novo g g 



Manx Cat, heredity 4 6 



Matthiola 84, 104, 113 



Melanic varieties 135, et seq. 



Memory, analogy with heredity. . . 190 



Meristic variation 69, 83, 86 



Mirabilis, striped ry 



Models of segmentation 59, 60 



"Modes," Coutagne's conception of 126 

 Modling, peculiar race of Pieris 



napi at j yg 



Mole, albino 27, 28 



Mule, Linnaeus on 8 



Mutation, Matthioli on 4 



in Mercurialis c 



in Kales 5 



alleged in bulbs 5 



Theory , oy 



periods of ! I4 



in Bacteria 215 



Mutilation, consequences of. . . 71, 82 



alleged effect of, on offspring 230 



Myxococcus, variation in 214 



Narwhal, asymmetry of tusks 44 



Nemesia strumosa 9! 



Neuration, a basis for classification 13 



Nicotiana, sterility of hybrid 243 



Nightjars, varying I50 



Noctuidae, fixity and variability. . 

 Noctua, polymorphic and fixed 



species 



Noctua castanea, local forms of . . . 



Nomenclature, future of 94, 



Notonecta, variations of 



-5 



25 

 122 

 246 

 130 



bidentata, melanic 



137 

 40 



Odontoptera 



form 



Oedipodidae, protectively coloured 



Oenothera, new dominant in 92 



rubricalyx and rubrinervis. . . .92, 95 



Lamarckiana 92, 101 



origin of I0 2, 245 



has bad pollen-grains 102 



factorial analysis of 103 



pollen and egg-cells genetically 

 dissimilar 104 



1 1 1 

 " 1 

 114 



228 



Oenothera, "twin hybrid" 



laeta and velutina 



""ill < rOMCI in 



possihle coupling in 



dwarfs " n \ 



"Triple hybrids" 



alleged variation due I 



riK'nt 



Ophrys, local variability ]]- 



Oranj e, polyembryony ' ; - 



Osmotic growth [[ () . 



Overlapping forms , 



Papilio, geographical races of 169 



Papilio turnus, variation of j . j 



Pararge egeria, geographical 1 



Parthenogenesis - Q 



Partula, local forms of j j 3 



Passer domesticus and montanu* 



distinctions ._, 



Pea, round and wrinkled 



Pear, will not cro>s with a; 



Pelargonium, variegated 



bud-sports 



Periodic phenomena in structure 

 Peronea, fixed and variable 



" Petites especes " 249 



Petunia, double 



Phalanger maculatus, local varia- 

 tion IIQ 



Pheasant, fixity of 



Phigalia pilosaria, melanic. 

 Phratora vitellinae, experiment 



Phyllotaxis 



Pied varieties common in Fa 

 domesticus unknown in n 



tanus 



Pieris napi and bryoniae. . 



Pig, mule-footed 



Pigeon, web-footed 



Indian Rock, a rece- 98 



Pigments, nature of 83 



Pisum huniile, hybrids with culi- 

 nary peas 



species 



Planarian, regeneration of 71, 77 



Plotheia frontalis, polymorphic. I 

 Plusia, fixity and variation In 

 Poephila gouldiae, variation 



Polai ity of individual 



Polia chi, melanic 



Polyanthus, Bhort-styl 



Polydaetylism in Cat 



Polyembryony 



Potato, variation in 91 



Poultry, evolution of 90 



Prae-induction 



69 



