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J. Tue CLIMATE AND PursiCAL ASPECTS OF THE EQUATORIAL Zoxe.
II. EquatoriaL VEGETATION. ·
torial Fore-ti--Low-growth Forest-trees-Flowery Trunks and their
III. ANIMAL LIFE IS TE TROPICAL Forests.
IV. HCMMING-BIRDS: AS ILLUSTRATING TIIE LUXURIANce or
Tropical NATURE, Structure--Colours and Ornament3-Descriptive Names— The Motions and
Habits of Humming-Birds-Di-play of Ornaments by the Male-Food --Geographical Distribution and Variation--Humminy-Birls of Juan Fernandez as illustrating Variation and Natural Selection-The Relations and Itlinities of Humming-Birds – Ilow to Determine Doubtful Afinities -Resemblances of Swists and Humming-Birds-Differences between Sun-birds and Humming-Lirds . . . . . . . . pages 121-157
V. Tue Colours of ANIMALS AND SEXCAL SELECTION. General Pheromena of Colour - Theory of Ileat anil Light as producing
('olour-Changes of Culour in Animals produced by Coloured Light('lassification of Organic Colours-Protective Colours-- Warning Colours -Sexual Colours--Typical Colours - The Nature of Colour-How Inimal Colours are Produced-l'olour a Normal Product of Organization - Theory of Protective Colours- Theory of Warning Colours -- Imitative Warning Colours, The Theory of Jimiery- Theory of Sexual Colours-Colour as a Means of Recognition--Colour proportionate to Integrimentary Development --Suection by Females not a Cause of Colour-Probable L'se of the Horns of Beetles-Cause of the greater Drilliancy of some Female Insects--Origin of the Ornamental Plumage of Male Birds--- Theory of the Display of Ornaments by Wales-Natural Selection as neutralizing Sexual Selection--Greater Brilliancy of some Female Birds-Colourdevelopment as illustrated by IIumming-Dirds--Theory of Typical Colours -Local Claes of Colour-levelopment--Summary on Colour-development in Animals--Concluding Remarks on Causes of Bright Colour in the Tropies . . . . . . . . . . . . . . . . pigis 153-220
VI. Tue COLOURS OF PLANTS AND THE ORIGIN OF THE COLOUR-SEX:E. Source of Colouriny-matter in Plants-Protective Coloration and Mimicry
in Plants - Attractive Colours of Fruits - Protective Colours of FruitsSeeds how Protected-attractive Colours of Flowers-Attractive Odours in Flowers-Attractive Grouping in Flowers--Why Alpine Flowers are so Beautiful-- Why Allied Species of Flowers differ in Size and Beauty-Absence of Colours in Wind fertilized Flowers-The same Theory of Colour applicable to Animals and Plants-Relation of the Colours of Flowers and their Geographical Distribution-Recent Views as to the Direct Action of Light on the Colours of Flowers and Fruits-Concluding Remarks on the Importance of Colour in the Organic World-Tue ORIGIN OF THE COLOU'R->ESSE.--Suppose Incre.se of Colour-perception within the II-lyrical Periud - ('oncluding liimarks on the Colour-sense
P 'g:8 221—213
ona s 7900.92.14
LOX DOX: R. CLAY, SOXS, AND TAYLOR,
EREAD STREET NUL.
Lund of the Sun ! where joyous green-robed Spring