The Evolution of Man: A Popular Exposition of the Principal Points of Human Ontogeny and Phylogeny, Volumen2D. Appleton, 1879 |
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Términos y frases comunes
Acrania allantois Amnion Amnion Animals Amniota Amphibia Amphioxus Anatomy and Ontogeny ancestors Apes arterial Ascidian auricle bladder blood blood-vessels body body-cavity brain cavity Cloacal Animals cœlom Comparative Anatomy connected Craniota developed differentiation Dipneusta dorsal egg-cell embryo entirely Epoch especially evolution exoderm extant female fore-brain formation Gastræa gastrula Gegenbaur germ germ-history gill-arches gills glands heart higher Vertebrates human embryo important inner intestinal canal intestinal-fibrous layer latter lower Vertebrates male mammalian Mammals medullary tube membrane Monera mucous Müllerian duct notochord ontogenetic Ontogeny origin outer ovary peculiar pedigree Period phylogenetic Phylogeny Placental Animals Plate posterior Pouched Animals primæval primary germ-layers Primitive Fishes primitive kidney duct Reptiles Ringed Worms rudiment Scolecida secondary Selachii Semi-apes sexual organs side simple skeleton skin skin-fibrous layer Skull-less Skulled Animals sperm-cells structure Systematic Survey tissue tribe upper urinary urinary bladder uterus vascular system ventral vertebral column wall Wolffian duct
Pasajes populares
Página 165 - Thus, whatever system of organs be studied, the comparison of their modifications in the ape series leads to one and the same result — that the structural differences which separate Man from the Gorilla and the Chimpanzee are not so great as those which separate the Gorilla from the lower apes.
Página 455 - ... beautifully expresses the generalized idea of Buddhism. We do not postulate that man's evolution began from the protoplasmic stage; but we are asked not to speculate on the origin of life, on the origin of the law of cause and effect, etc. So far as this great law is concerned we say that it controls the phenomena of human life as well as those of external nature, the whole knowable universe forms one undivided whole.
Página 457 - spirit ' and ' mind ' of man are but forces which are inseparably connected with the material substance of our bodies. Just as the motive force of our flesh is involved in the form-element, so is the thinking force of our spirit involved in the form-element of the brain.
Página 140 - Perhaps no order of mammals presents us with so extraordinary a series of gradations as this — leading us insensibly from the crown and summit of animal creation down to creatures, from which there is but a step, as it seems, to the lowest, smallest, and least intelligent of the placental Mammalia.