NATURAL selection, its general principles.
NATURE, sense in which the term is employed.
NAUDIN, supposed rules of transmission in crossing plants. -on the nature of hybrids. -essences of the species in hybrids. -reversion of hybrids. -reversion in flowers by stripes and blotches. -hybrids of Linaria vulgaris and purpurea. -pelorism in Linaria. -crossing of peloric Linaria with the normal form. -variability in Datura. -hybrids of Datura laevis and stramonium. -prepotency of transmission of Datura stramonium when crossed. -on the pollen of Mirabilis and of hybrids. -fertilisation of Mirabilis. -cultivated Cucurbitaceae. -rudimentary tendrils in gourds. -dwarf Cucurbitae. -relation between the size and number of the fruit in Cucurbita pepo. -analogous variation in Cucurbitae. -acclimatisation of Cucurbitaceae. -production of fruit by sterile hybrid Cucurbitaceae. -on the melon. -incapacity of the cucumber to cross with other species.
NECTARINE. -derived from the peach. -hybrids of. -persistency of characters in seedling. -origin of. -produced on peach-trees. -producing peaches. -variation in. -bud-variation in. -glands in the leaves of the. -analogous variation in.
NECTARY, variations of, in pansies.
NEES, on changes in the odour of plants.
"NEGRO" cat.
NEGROES, polydactylism in. -selection of cattle practised by.
NEOLITHIC period, domestication of Bos longifrons and primigenius in the. -cattle of the, distinct from the original species. -domestic goat in the. -cereals of the.
NERVE, optic, atrophy of the.