The Whence and the Whither of Man: A Brief History of His Origin and Development Through Conformity to Environment; Being the Morse Lectures of 1895W. Blackwood and Sons, 1896 - 312 pagine |
Dall'interno del libro
Risultati 1-5 di 32
Pagina v
... HEAD . 55 Worms and the development of organs . - Mollusks : The external protec- tive skeleton leads to degeneration or stagnation . - Annelids and arthro- pods : The external locomotive skeleton leads to temporary rapid advance , but ...
... HEAD . 55 Worms and the development of organs . - Mollusks : The external protec- tive skeleton leads to degeneration or stagnation . - Annelids and arthro- pods : The external locomotive skeleton leads to temporary rapid advance , but ...
Pagina 17
... head of which man stands , there always has been progress , we cannot doubt that future progress will be as certain , and per- haps far more rapid . In all the struggle of life we shall have the sure hope of success and victory ; if not ...
... head of which man stands , there always has been progress , we cannot doubt that future progress will be as certain , and per- haps far more rapid . In all the struggle of life we shall have the sure hope of success and victory ; if not ...
Pagina 46
... head , has one end which goes first and can be called the front end . The upper or dorsal surface is usually more colored with pigment cells than the lower or ventral surface , on which is the mouth . It has also a right and left side ...
... head , has one end which goes first and can be called the front end . The upper or dorsal surface is usually more colored with pigment cells than the lower or ventral surface , on which is the mouth . It has also a right and left side ...
Pagina 53
... Head , in any proper sense of the term , and skeleton are still lacking ; they remain to be developed . And yet , taking the most hopeful view possible con- cerning the animal kingdom , its prospects of attain- ing anything very lofty ...
... Head , in any proper sense of the term , and skeleton are still lacking ; they remain to be developed . And yet , taking the most hopeful view possible con- cerning the animal kingdom , its prospects of attain- ing anything very lofty ...
Pagina 54
... is the promise of an infinite future . The atom of nervous power shall increase until it subdues and dom- inates the whole mass . CHAPTER III WORMS TO VERTEBRATES : SKELETON AND HEAD IN 54 THE WHENCE AND THE WHITHER OF MAN.
... is the promise of an infinite future . The atom of nervous power shall increase until it subdues and dom- inates the whole mass . CHAPTER III WORMS TO VERTEBRATES : SKELETON AND HEAD IN 54 THE WHENCE AND THE WHITHER OF MAN.
Altre edizioni - Visualizza tutto
The Whence and the Whither of Man: A Brief History of His Origin and ... John Mason Tyler Visualizzazione completa - 1896 |
The Whence and the Whither of Man: A Brief History of His Origin and ... John Mason Tyler Visualizzazione completa - 1897 |
The Whence and the Whither of Man: A Brief History of His Origin and ... John Mason Tyler Visualizzazione completa - 1899 |
Parole e frasi comuni
amoeba amphibia anatomical ancestors animal kingdom annelid apes appear appetite attained become birds body brain cavity cells cerebrum Cheaper Edition church conformity to environment conscious Crown 8vo degeneration Demy 8vo digestive dominant ectoderm embryo evolution experience eyes Fcap fish functions ganglion gastrula germ-plasm give groups higher forms highest human hydra Illustrations increase individual insect instinct intelligence laws layer legs living locomotion lower mammals man's marsupial ment mental mind mode modified mollusks moral muscles muscular natural selection nerve nervous system never notochord nutriment organs oxygen parapodia perception perivisceral Portrait Post 8vo primitive probably Professor progress protoplasm protozoa purely reflex action reproductive reptiles result schematic worm Scotland segments selfish sense-organs sequence skeleton species stage structure struggle surface survive swimming theory tion true truth turbellaria University of Edinburgh variation velopment vertebral column vertebrates vols volvox WHITHER young