The Origin of Species (Barnes & Noble Classics) - Charles Darwin [266]
Timber-drift
Time, lapse of
Titmouse
Toads on islands
Tobacco, crossed varieties of
Tomes, Mr., on the distribution of bats
Transitions in varieties of
Trees on islands belong to peculiar orders ; with separated sexes
Trifolium pratense; incarnatum
Trigonia
Trilobites; sudden extinction of
Troglodytes
Tucu-tucu, blind
Tumbler pigeons, habits of, hereditary ; young of
Turkey-cock, brush of hair on breast
Turkey, naked skin on head; young, wild
Turnip and cabbage, analogous variations of
Type, unity of
Types, succession of, in same areas
Udders enlarged by use; rudimentary
Ulex, young leaves of
Umbelliferae, outer and inner florets of
Unity of type
Use, effects of, under domestication
Utility, how far important in the construction of each part
Valenciennes on fresh-water fish
Variability of mongrels and hybrids
Variations appear at corresponding ages ; analogous in distinct species
Varieties, natural; struggle between ; domestic, extinction of; transitional; when crossed, fertile; when crossed, sterile ; classification of
Verbascum, sterility of; varieties of, crossed
Verneuil, M. de, on the succession of species
Viola tricolor
Volcanic islands, denudation of
Vulture, naked skin on head
Wading-birds
Wallace, Mr., on origin of species; on law of geographical distribution; on the Malay Archipelago
Wasp, sting of
Water, fresh, productions of
Water-hen
Waterhouse, Mr., on Australian marsupials; on greatly developed parts being variable; on the cells of bees; on general affinities
Water-ouzel
Watson, Mr. H.C., on range of varieties of British plants; on acclimatisation ; on flora of Azores; on Alpine plants; on rarity of intermediate varieties
Weald, denudation of
Web of feet in water-birds
West Indian islands, mammals of
Westwood on species in large genera being closely allied to others; on the tarsi of Engidae; on the antennae of hymenopterous insects
Whales, fossil
Wheat, varieties of
White Mountains, flora of
Wings, reduction of size
Wings of insects homologous with branchiae; rudimentary, in insects
Wolf crossed with dog; of Falkland Isles
Wollaston, Mr., on varieties of insects; on fossil varieties of land-shells in Madeira; on colours of insects on seashore; on wingless beetles ; on rarity of intermediate varieties; on insular insects; on land-shells of Madeira, naturalised
Wolves, varieties of
Woodpecker, habits of 155; green colour of
Woodward, Mr., on the duration of specific forms; on the continuous succession of genera ; on the succession of types
World, species changing simultaneously throughout
Wrens, nest of
Youatt, Mr., on selection; on sub-breeds of sheep; on rudimentary horns in young cattle
Zebra, stripes on
a
The “philosopher” (that is, natural philosopher) Darwin refers to is the great British astronomer, Sir John Herschel (1792-1871). Note: Since Darwin was in contact with literally hundreds of professional and amateur scientists, these notes will identify only very important figures. †British naturalist Alfred Russel Wallace (1823-1913).
b
British geologist (1797-1875), whose Principles of Geology Darwin carried on the Beagle voyage.
c
Sir Joseph Dalton Hooker (1817-1911), perhaps the most important botanist of his time and an intimate friend of Darwin.
d
Thomas Malthus (1766-1834), British clergyman and political economist, whose An Essay on the Principle of Population (1798) triggered Darwin’s ideas about natural selection.
e
Thomas Andrew Knight (1759-1838), an important British horticulturist.
f
Akbar Khan (1542-1605), powerful emperor of India and nature lover who bred and studied pigeons.
g
One of the most important and fashionable of British horse races, the Goodwood races were initiated in 1802 by the Duke of Richmond and are still in operation.
h
Carolus Linnaeus is the Latin version of the name of Carl von Linné (1707-1778), the Swedish botanist who originated the taxonomic system according to which organisms are still ordered.
i
Darwin returns to this diagram in chapter X, page 265.
j
Darwin refers here to his