 | Sir Charles Lyell - 1835 - 474 sider
...remotest geological era. * Lawrence, Lectures on Phys. Zool. and Nat. Hist. of Man, p. 192. Ed. 1823. If you examine the brain of the mammalia, says M....mammalia present. The cerebral hemispheres, then, arrive at the state which we observe in the higher animals only by a series of successive metamorphoses.... | |
 | Sir Charles Lyell - 1837 - 464 sider
...succession, forms analogous to those which belong to fishes, reptiles, and birds, before it acquires the additions and modifications which are peculiar to...mammalia present. The cerebral hemispheres, then, arrive at the state which we observe in the higher animals only by a series of successive metamorphoses.... | |
 | Sir Charles Lyell - 1837 - 568 sider
...there is a typical representation, as it were, of all those transformations which the primitive specjes are supposed to have undergone, during a long series...mammalia present. The cerebral hemispheres, then, arrive at the state which we observe in the higher animals only by a series of successive metamorphoses.... | |
 | Hugh Miller - 1842 - 358 sider
...mammiferous tribes." " In examining the brain of the mammalia," says M. Serres, " at an early stage of life, you perceive the cerebral hemispheres consolidated,...they present you with the forms of those of birds ; and finally, at the era of birth, the permanent forms which the adult mammalia present." And such... | |
 | Oliver Goldsmith - 1852 - 674 sider
...and birds, before it acquires those additions and modifications which are peculiar to the mammalia. " If you examine the brain of the mammalia," says M....permanent forms which the adult mammalia present." As the infant grows towards manhood it loses, at" a certain age, the thymus gland ; by degrees it acquires... | |
 | Hugh Miller - 1856 - 338 sider
...mammiferous tribes." " In examining the brain of the mammalia," says M. Serres, " at an early stage of life, you perceive the cerebral hemispheres consolidated,...vesicles isolated one from the other ; at a later period^you see them affect the configuration of the cerebral hemispheres of reptiles ; still later,... | |
 | Hugh Miller - 1857 - 340 sider
...mammiferous tribes." " In examining the brain of the mammalia," says M. Serres, " at an early stage of life, you perceive the cerebral hemispheres consolidated,...one from the other ; at a later period you see them aflect the configuration of the cerebral hemispheres of reptiles ; still later, again, they present... | |
 | Hugh Miller - 1865 - 454 sider
...Serres, " at an early stage of life, you perceive the cerebral hemispheres consolidated, as in (ish, in two vesicles isolated one from the other; at a...they present you with the forms of those of birds ; and finally, at the era of birth, the permanent forms which the adult mammalia present." And such... | |
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If you examine the brain of the mammalia, says M. Serres, at an early stage of uterine life, you perceive the cerebral hemispheres consolidated, as in fish, in two vesicles, isolated one from the other ; at a later period, you see them affect the configuration... 