PDF - Wallace Online

isexes,490 INDEXShell-mounds, ancient, in the Aleutianislands, 437Spruce, Dr., onTarapoto, 253number of ferns atShufeldt, Dr., on affinity of goatsuckerson inconspicuousness of tropicaland owls, 123 (note)Sickle-bill humming-bird, 321flowers, 264Stainton, Mr., on moths rejected byturkeys, 56, 63Sidgwick, Mr. A., on protectivecolouring of moths, 46Simocyonidae, 165Sitta, sexual colouring and nidificationof, 126Sittella, sexual colouring and nidificationof, 126on the GreatSmyth, Professor Piazzi,Pyramid, 430Snakes, mimicry among, 72characteristics of tropical, 304Sobralias, 256Soil, heat of, 222influence of temperature on climate,223Solenopsis, genus of ants, 281Song of birds, instinctive or imitative,104Sorby, Mr., on composition of chlorophyll,395Spiders, which mimic ants and flowerbuds, 70remarkable tropical, 291Spilosoma menthastri, 63Spruce, Dr. Richard, on habits ofIndians of Peru, 107Stalachtis, a genus of Erycinidee, theobject of mimicry, 60St. Helena, 9Stick-insects, 287Stinging insects generally conspicunislycoloured, 52St. John, Mr., on large python, 305Size, correspondence of in tropicalflowers and insects', 406Skull, the Calaveras, 447Sky, colour of not mentioned in oldestbooks, 413Smith, Mr. Worth ington, on mimicryfungi, 397Stone mortars in auriferous gravels ofCalifornia, 445Streptolabis hispoides, 66Structure of humming-birds, 313Struggle for existence, 23, 25Sturnidae, sexual colouring and nidificationof, 127Sturnopastor, 123Sugar from palm-trees, 250Sun-birds, differences from hummingbirds,334Sun's noonday altitude in Java andLondon compared, 221Sun's rays, heating effect of, 221Sunrise in the equatorial zone, 233Survival of the fittest, law of, stated,26its action in determining colour,48Swainson's circular and quinariantheory, 34Swallows, various forms of nests of,114hummingbirds,Spalding, on instinctive actions ofyoung birds, 109Sparrow learning song of linnet andgoldfinch, 105Species, law of population of, 23 Swifts, resemblances of to333abundance or rarity of, dependenton the adaptation to conditions, and humming-birds, Dr. Shufeldt26diversity of opinions as to, 454Speed of animals, limits of, 160Sphecia craboniforme, 64Sphecomorpha chalybea, 68on supposed affinities of,337 (note)Sylviadae, sexual colouring and nidificationof, 128Symmachia trochilus, 274Sphegidaj, mimicked by flies, 69colubris, 275Spices from equatorial forest - trees, Synapta, 136245TACHORNIS phaenicobea, 116Tanagridse, sexual colouring and nidificationof, 127Tapir, ancestral types of, 165Telephori, similar colouring of two80