A238    Book:     Wallace, A. R. 1895. Natural selection and tropical nature: Essays on descriptive and theoretical biology. London: Macmillan.   Text   Image

of a small ant that swarmed on the syrup with which they were fed. It is strange that, with all this previous experience and information, those who have attempted to bring live humming-birds to this country have fed from exclusively on syrup; and the weakness produced by this insufficient food has no doubt been the chief cause of their death on, or very soon after, arrival. A box of ants would not be difficult to bring as food for them, but even finely-chopped meat or yolk of egg would probably

A238    Book:     Wallace, A. R. 1895. Natural selection and tropical nature: Essays on descriptive and theoretical biology. London: Macmillan.   Text   Image

, 206 Professor Tyndall on, 206 not a product of complex organisation, 209 an advance on mere vegetative life, 209 (note) Coprid , 289 probable use of horns of, 372 Coral-reefs and cirripedia, Darwin's works on, 473 Correlation of growth, 172 Corynomalus sp., 66 Cotingid , sexual colouring and nidification of, 127 Cratosomus, a hard weevil, 67 Crematogaster, gems of ants, 280 Crickets mimicking sand wasps, 70 Cross-fertilisation of flowers, use of, 400 complex arrangements for, 401 Crossing and

A238    Book:     Wallace, A. R. 1895. Natural selection and tropical nature: Essays on descriptive and theoretical biology. London: Macmillan.   Text   Image

nidification, 124 more exposed to enemies than the males, 130 greater brilliancy of some, 379 Female butterflies generally dull-coloured, 137 Female insects, mimicry by, 78, 137 colours of, 80 greater brilliancy of some, 372 Female sex, has no incapacity for as brilliant coloration as the male, 129 in some groups requires more protection than the male, 136 Ferns, 253 Fiji islands, pale butterflies or, 385 Fire-ants, 280 Fishes, protective colouring of, 41 causes of general coloration of, 348

A238    Book:     Wallace, A. R. 1895. Natural selection and tropical nature: Essays on descriptive and theoretical biology. London: Macmillan.   Text   Image

indications of extreme antiquity of, 420 highly developed at very early period, 421 antiquity of intellectural, 424 antiquity of, in North America, 433 in America coeval with extinct mammalia, 438 in America in the glacial period, 439 fossil remains of, in the auriferous gravels of California, 446 concluding remarks on antiquity of, 448 Mantid , adaptive colouring of, 46 mimicking white ants, 70 tropical forms of, 286 Mantis resembling on orchis-flower, 349 Mangroves, 262 Manicaria saccifera, 249

A334    Book:     Poulton, Edward Bagnall. 1896. Charles Darwin and the theory of natural selection. London: Cassell & Co.   Text   Image

all through this period he was making fresh observations whenever an opportunity occurred. Thus we find him writing to Hooker about the thistle-down blown out to sea and then back to shore again; about the migrations of slave-making ants which he had been watching; about the bending of the pistil into the line of the gangway leading to the honey when this latter is secreted at one point of the circle of the corolla, etc. And on March 2nd, 1859, he writes about an odd, though very little, fact

F1548.2    Book:     Darwin, Francis & Seward, A. C. eds. 1903. More letters of Charles Darwin. A record of his work in a series of hitherto unpublished letters. London: John Murray. Volume 2   Text   Image   PDF

. Sharp is good enough to tell us that he is not aware of any such adaptation. Broadly speaking, the distribution of the nest-inhabiting beetles is due to co-migration with the ants, though in some cases the ants transport the beetles. Sitaris and Meloe are beetles which live at the expense of bees of the genus Anthophora. The eggs are laid not in but near the bees' nest; in the early stage the larva is active and has the instinct to seize any hairy object near it, and in this way they are carried

A39    Book:     Hird, D. 1903. An easy outline of evolution. London: Watts & Co.   Text   Image

to succeeding generations. It can be clearly shown that the most wonderful instincts with which we are acquainted namely, those of the hive-bee and of many ants could not possibly have been acquired by habit (p. 206). These passages have a great historical interest quite apart from the doctrine of Evolution. They show the cloudy metaphysics which then hung around the whole question of instinct. In consequence of this metaphysical puzzle, Darwin's task of dealing with instinct was rendered

F1548.2    Book:     Darwin, Francis & Seward, A. C. eds. 1903. More letters of Charles Darwin. A record of his work in a series of hitherto unpublished letters. London: John Murray. Volume 2   Text   Image   PDF

of rendering the seeds dormant after the manner of the ants, and that indeed its influence is always injurious to the seeds, even when present only in excessively minute quantities. Though unable to explain the method employed, he was convinced that the non-germination of the seeds is due to some direct influence voluntarily exercised by the ants, and not merely to the conditions found in the nest (page 172). See Volume I., Letter 251.] Down, February 21st [1873]. You have given me exactly the

A39    Book:     Hird, D. 1903. An easy outline of evolution. London: Watts & Co.   Text   Image

, a little mouse, from mus, a mouse): An organ composed of contractile fibres. NEURAL (G. neuron, nerve): Of, or pertaining to, the nerves or nervous system. NEUTERS (L. ne, not, and uter, either): Organisms not belonging to either sex neither male nor female. Among social insects, as ants and bees, the neuters are imperfectly developed females, and as they have the work of the hive to perform, they are often called workers. SOPHAGUS (G. oisophagos oiso, from future of phero, to bear, and

F1548.1    Book:     Darwin, Francis & Seward, A. C. eds. 1903. More letters of Charles Darwin. A record of his work in a series of hitherto unpublished letters. London: John Murray. Volume 1   Text   Image   PDF

must get and see specimens in British Museum. I hope and suppose you will give a good deal of Natural History in your Travels; every one cares about ants-more notice has 1. Edinburgh Review, April, 1860, page 525. 2. Volucella is a fly-one of the Syrphidae-supposed to supply a case of mimicry; this was doubtless the point of interest with Bates. Dr. Sharp says [Insects, Part II. (in the Camb. Nat. Hist. series), 1899, page 500]: It was formerly assumed that the Volucella larvae lived on the larvae