Vietnam or Thailand ? Vote for the TOP Country of the Week !
Updated: May 19, 2025
Even the embryologist, when he follows the DEVELOPMENT of his object, has to treat the history of each single organ in turn. ABSOLUTE aesthetic union is thus another barely abstract ideal. The world appears as something more epic than dramatic. So far, then, we see how the world is unified by its many systems, kinds, purposes, and dramas.
Minot, the embryologist, and Drummond, the scientist, tells us that only by losing its life does the cell save it. The new science exhibits the body as a temple, constructed out of cells, as a building is made of bricks. Just as some St.
One of the greatest stylists of English prose, Browne was also a physician and a student of generation who deserves our attention as an early chemical embryologist pointing the way to a form of embryological investigation prominent in the last half of the seventeenth century.
It has required three centuries of scientific thought and of subtle inventions for its promotion to enable a modern chemist or physicist to center his attention on electrons and their relation to the mysterious nucleus of the atom, or to permit an embryologist to study the early stirrings of the fertilized egg.
At the present time, there is no important group of organic beings the development of which has not been carefully studied; and the modern methods of hardening and section-making enable the embryologist to determine the nature of the process, in each case, with a degree of minuteness and accuracy which is truly astonishing to those whose memories carry them back to the beginnings of modern histology.
It would be instructive to follow some naturalist into his own particular domain, for instance a palæontologist into the detailed facts of palæontology, or an embryologist into those of embryology, in order to learn whether these corroborate the assumptions of the Theory of Descent or not.
It is not the zoölogist who invents the structural relations establishing a gradation between all Polyps, it is not the geologist who places them in the succession in which he finds them in the rocks, it is not the embryologist who devises the changes through which the living Polyps pass as he watches their growth; they only read what they see, and when they compare their results they all tell the same story.
Or, briefly stated, ontogenesis, or the embryonic development of the individual, is a brief recapitulation of phylogenesis, or the ancestral development of the phylum or group. The illustration and proof of this law is the work of the embryologist. We have time to draw only one or two illustrations from the embryonic development of birds.
If paragraphs and pages are missing from the brief embryonic recapitulation, whole chapters and volumes of the fossil series have been lost for all time. The investigators whose task it has been to decipher the story of the earth's evolution have had to meet numerous and exasperating difficulties which do not confront the embryologist and anatomist who study living materials.
The succession of fossil Corals has been found in the rocks by the geologist, the embryologist has followed the changes in the growth of the living Corals, the zoölogist has traced the geographical distribution and the structural relations of the full-grown animals; but it is only after the results of their separate investigations are collected and compared that the coincidence is perceived, and alt find that they have been working unconsciously to one end.
Word Of The Day
Others Looking