"Embryological" Quotes from Famous Books
... be more significant and interesting than the results provided by the comparative study of development. In the first place it is an obvious fact that every living thing changes in the course of its life-history, and if as an adult it occupies a high place in the animal scale, its embryological transformation is more elaborate and intricate than in the case of a lower form. Every one knows that organisms do develop, and yet I believe that few appreciate the tremendous significance of the mere fact that this is true, while still fewer are aware that the peculiar ... — The Doctrine of Evolution - Its Basis and Its Scope • Henry Edward Crampton
... circumstances require,—then it becomes quite possible to imagine that a strictly natural causation may have had something to do with the matter. And this suggestion becomes greatly more probable when we discover, from geological evidence and embryological research, that in the history both of races and of individuals the various mechanisms in question have themselves had a history—beginning in the forms of most uniformity and simplicity, gradually advancing to forms more varied and complex, nowhere exhibiting any interruptions in their upward ... — Darwin, and After Darwin (Vol. 1 and 3, of 3) • George John Romanes
... am unable to pursue this subject much further; but there is one point I should mention. In Harvey's time, the microscope was hardly invented. It is quite true that in some of his embryological researches he speaks of having made use of a hand glass; but that was the most that he seems to have known anything about, or that was accessible to him at that day. And so it came about, that, although he examined ... — William Harvey And The Discovery Of The Circulation Of The Blood • Thomas H. Huxley
... animals. As representing mammals, guinea pigs were chiefly used; and for reptiles, snakes; while in addition the embryos of fishes, frogs, mollusks, and other lower animals were also employed. But of all animals birds are most suitable for embryological observations, inasmuch as with due precautions the development of one and the same individual can be followed for a considerable time. Birds' eggs can be incubated in a warm chamber, and by removing a portion of the shell and replacing ... — Scientific American Supplement, No. 711, August 17, 1889 • Various
... the only instance in which the embryological evidence confirms perfectly the anatomical evidence on which orders have been distinguished, and I believe that Embryology will give us the true standard by which to test the accuracy of our ordinal groups. In the class of Crustacea, for instance, the Crabs have been placed ... — The Atlantic Monthly, Vol. IX., March, 1862., No. LIII. - A Magazine Of Literature, Art, And Politics, • Various
... Daubenton, who was born in 1716. He was the collaborator of Buffon in the first part of his Histoire Naturelle, and the author of treatises on the mammals and of papers on the bats and other mammals, also on reptiles, together with embryological and anatomical essays. Thouin, the professor of horticulture, was the veteran gardener and architect of the Jardin des Plantes, and withal a most useful man. He was affable, modest, genial, greatly beloved ... — Lamarck, the Founder of Evolution - His Life and Work • Alpheus Spring Packard
... considerable light can be thrown by the theory of descent on these wonderful embryological facts which are common in a greater or less degree to the whole animal kingdom, and in some manner to the vegetable kingdom: on the fact, for instance, of the arteries in the embryonic mammal, bird, reptile and fish, running and branching in the same courses and nearly in the same manner ... — The Foundations of the Origin of Species - Two Essays written in 1842 and 1844 • Charles Darwin
... intuition of the ancient philosophers is interestingly linked with the experimental spirit and the analytical method of modern science. The latest biological and embryological theories are invoked to help in the comment on the hylozoism of the seven sages and the mysticism of the early Christians. Janicki and de Vries shake hands with Heraclitus and Saint Paul. The upshot is a strange vision of materialistic and dynamistic pantheism—a ... — The Forerunners • Romain Rolland |