Contributions to the Theory of Natural Selection: A Series of EssaysMacmillan and Company, 1875 - 384 pages |
From inside the book
Results 1-5 of 47
Page 6
... distinct species may have had a common antitype , and that each of these may again have become the antitypes from which other closely allied species were created . The effect of this would be , that so long as each species has had but ...
... distinct species may have had a common antitype , and that each of these may again have become the antitypes from which other closely allied species were created . The effect of this would be , that so long as each species has had but ...
Page 7
... distinct organs , leading us on to two distinct series of species , which at length differ so much from each other as to form distinct genera or families . These are the parallel series or representative groups of naturalists , and they ...
... distinct organs , leading us on to two distinct series of species , which at length differ so much from each other as to form distinct genera or families . These are the parallel series or representative groups of naturalists , and they ...
Page 26
... distinct- ness of species is , that varieties produced in a state of domesticity are more or less unstable , and often have a tendency , if left to themselves , to return to the normal form of the parent species ; and this insta- bility ...
... distinct- ness of species is , that varieties produced in a state of domesticity are more or less unstable , and often have a tendency , if left to themselves , to return to the normal form of the parent species ; and this insta- bility ...
Page 54
... among boughs and shrubs , or lie coiled up on the dense masses of foliage . These are of many distinct groups , and comprise both venomous and harmless genera ; but almost all of them are of 54 MIMICRY , AND OTHER PROTECTIVE.
... among boughs and shrubs , or lie coiled up on the dense masses of foliage . These are of many distinct groups , and comprise both venomous and harmless genera ; but almost all of them are of 54 MIMICRY , AND OTHER PROTECTIVE.
Page 57
... distinct species of tree , the bark of which it resembles with equal accuracy . Both these insects are abundant , and we may fairly conclude that the protection they derive from this strange concealment is at least one of the canses ...
... distinct species of tree , the bark of which it resembles with equal accuracy . Both these insects are abundant , and we may fairly conclude that the protection they derive from this strange concealment is at least one of the canses ...
Other editions - View all
Contributions to the Theory of Natural Selection: A Series of Essays ... Alfred Russel Wallace No preview available - 2018 |
Contributions to the Theory of Natural Selection: A Series of Essays Alfred Russel Wallace No preview available - 2016 |
Common terms and phrases
abundant adapted affinity animals antennæ antitypes appear beauty become beetles believe birds Borneo brain build butterflies caterpillars causes Celebes changes character closely allied species colour concealed conspicuous Crown 8vo curious Danaidæ Darwin Diphilus distinct earth Edition eggs epoch essay exactly example existence explained extinct facts faculties favourable flowers genera genus geological geological periods groups habits Heliconidæ Illustrations imitation India individuals inhabiting insects instinct islands Java larvæ Lepidoptera less Malayan male mimic mimicry mode modifications Moluccas moths natural selection nectary nest never nidification number of species observations occur Origin of Species Ormenus Pammon Papilio Papilio Ulysses Papilionidæ peculiar period phenomena physical Polydorus possess present probably produced Professor protection race regions remarkable render resemble savage Science sexes sexual selection shown structure Sumatra tail theory of natural Theseus tints tion TREATISE trees tropical University variation varied varieties whole wings
Popular passages
Page 361 - But the passage from the physics of the brain to the corresponding facts of consciousness is unthinkable. Granted that a definite thought and a definite molecular action in the brain occur simultaneously; we do not possess the intellectual organ, nor apparently any rudiment of the organ, which would enable us to pass, by a process of reasoning, from the one to the other.
Page 4 - AN ELEMENTARY TREATISE ON THE LUNAR THEORY, with a Brief Sketch of the Problem up to the time of Newton. Second Edition, revised. Crown 8vo. cloth. 5*. 6d. Hemming. — AN ELEMENTARY TREATISE ON THE DIFFERENTIAL AND INTEGRAL CALCULUS, for the Use; of Colleges and Schools.
Page 20 - Flower (WH) — AN INTRODUCTION TO THE OSTEOLOGY OF THE MAMMALIA. Being the Substance of the Course of Lectures delivered at the Royal College of Surgeons of England in 1870.
Page 368 - WILL, while we have no knowledge of any other primary cause of force, it does not seem an improbable conclusion that all force may be will-force; and thus, that the whole universe is not merely dependent on, but actually is, the WILL of higher intelligences or of one Supreme Intelligence.
Page 1 - With the Mathematical Elements of Music. Designed for the Use of Students in the University. Second Edition, Revised and Enlarged. Crown 8vo. gs. A TREATISE OF MAGNETISM. Designed for the Use of Students in the University.
Page 4 - HEMMING— AN ELEMENTARY TREATISE ON THE DIFFERENTIAL AND INTEGRAL CALCULUS, for the Use of Colleges and Schools. By GW HEMMING, MA, Fellow of St. John's College, Cambridge. Second Edition, with Corrections and Additions. 8vo.
Page 4 - JACKSON — GEOMETRICAL CONIC SECTIONS. An Elementary Treatise in which the Conic Sections are defined as the Plane Sections of a Cone, and treated by the Method of Projection. By J. STUART JACKSON, MA, late Fellow of Gonville and Caius College, Cambridge.
Page 8 - World : a Simple Account of Man in Early Times. Sixth Edition. Crown 8vo. Cloth, price 3$. A Special Edition for Schools. Price is. The Childhood of Religions.
Page 326 - natural selection' himself, but he is actually able to take away some of that power from nature which, before his appearance, she universally exercised. We can anticipate the time when the earth will produce only cultivated plants and domestic animals ; when man's selection shall have supplanted
Page 8 - The book will doubtless find a place in the library, not only of the scientific geologist, but also of all who are desirous of the industrial progress and commercial prosperity of the Acadian provinces.