 | عدد الصفحات: 874
...remains of birds in the new strata would be of very rare occurrence, for their powers of flight ensure them against perishing by numerous casualties to which...so as to become preserved in sedimentary deposits. For in consequence of the hollow, tubular structure of their bones, and the quantity of their feathers,... | |
 | Sir Charles Lyell - 1832 - عدد الصفحات: 368
...WE might have anticipated that the imbedding of the remains of birds in new strata would be of very rare occurrence, for their powers of flight insure...so as to become preserved in sedimentary deposits. For in consequence of the hollow tubular structure of their bones and the quantity of their feathers,... | |
 | Sir Charles Lyell - 1834 - عدد الصفحات: 440
...We might have anticipated that the imbedding of the remains of birds in new strata would be of very rare occurrence, for their powers of flight insure...their bones and the quantity of their feathers, they are extremely light in proportion to their volume, so that when first killed they do not sink to the... | |
 | sir Charles Lyell (bart.) - 1835 - عدد الصفحات: 500
...might have anticipated that the imbedding of the remains of birds in new strata would be of veryrare occurrence, for their powers of flight insure them...their bones and the quantity of their feathers, they are extremely light in proportion to their volume; so that when first killed they do not sink to the... | |
 | Sir Charles Lyell - 1835 - عدد الصفحات: 442
...We might have anticipated that the imbedding of the remains of birds in new strata would be of very rare occurrence, for their powers of flight insure...structure of their bones and the quantity of their * Sir TD Lauder's Account, second edition, p. 312. feathers, they are extremely light in proportion... | |
 | Sir Charles Lyell - 1835 - عدد الصفحات: 474
...imbedding of the remains of birds in new strata would be of very rare occurrence, for their powers qf flight insure them against perishing by numerous casualties...their bones and the quantity of their feathers, they are extremely light in proportion to their volume; so that when first killed they do not sink to the... | |
 | 1841 - عدد الصفحات: 488
...to twice the size of an ostrich. No one need be surprised at this paucity of the remains of birds, for their powers of flight insure them against perishing...casualties to which quadrupeds are exposed during floods, &c. ; and, if they chanced to be drowned, or to die when swimming on the water, it would scarcely ever... | |
 | Sir Charles Lyell - 1837 - عدد الصفحات: 582
...We might have anticipated that the imbedding of the remains of birds in new strata would be of very rare occurrence, for their powers of flight insure...they will be submerged so as to become preserved in sedimenary deposits. In consequence of the hollow tubular structure of their bones and the quantity... | |
 | Sir Charles Lyell - 1837 - عدد الصفحات: 584
...water, it will scarcely ever happen that they will be submerged so as to become preserved in sedimenary deposits. In consequence of the hollow tubular structure...their bones and the quantity of their feathers, they are extremely light in proportion to their volume ; so that when first killed they do not sink to the... | |
 | sir Charles Lyell (bart.) - 1840 - عدد الصفحات: 504
...We might have anticipated that the imbedding of the remains of birds in new strata would be of very rare occurrence, for their powers of flight insure them against perishing by numerous casualties to whicli quadrupeds are exposed during floods; and if they chance to be drowned, or to die when swimming... | |
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We might have anticipated that the imbedding of the remains of birds in new strata would be of very rare occurrence, for their powers of flight insure them against perishing by numerous casualties to which quadrupeds are exposed during floods ; and if... 
