 | 1854 - Страниц: 568
...animals ; whilst the durability of their tissues renders them not less available to the palaeontologist in the determination of the nature and affinities of extinct species, of whose organization they are often the sole remains discoverable in the deposits of former periods of... | |
 | William Somerville Orr - 1854 - Страниц: 422
...; c whilst the durability of their tissues renders them not less available to the palœonthologist in the determination of the nature and affinities of extinct species, of whose organization they are often the sole remains discoverable in the deposits of former periods of... | |
 | Richard Owen - 1854 - Страниц: 362
...animals ; whilst the durability of their tissues renders them not less available to the palaeonthologist in the determination of the nature and affinities of extinct species, of whose organization they are often the sole remains discoverable in the deposits of former periods of... | |
 | David Page - 1865 - Страниц: 520
...animals ; whilst the durability of their tissues renders them not less available to the palaeontologist, in the determination of the nature and affinities of extinct species, of whose organisation they are often the sole remains discoverable in the deposits of former periods of... | |
 | Richard Owen - 1866 - Страниц: 700
...Magnified section of molar. Megatherium ; v vnsodentlne, ( dentine, e cement TI. the palaeontologist in the determination of the nature and affinities of extinct species, of whose organisation they are often the sole remains discoverable in the deposits of former periods of... | |
 | Richard Owen - 1866 - Страниц: 704
...Magnifled section of molar, Megatherium ; r vasodentine, t dentine, c cement. VL the palaeontologist in the determination of the nature and affinities of extinct species, of whose organisation they are often the sole remains discoverable in the deposits of former periods of... | |
 | James Orton - 1877 - Страниц: 418
...general structure of an animal from a sight of the teeth alone. For the same reason, they form important guides in the classification of animals; while their...sometimes suffice. 4. Deglutition, or How Animals Swallow. — In the lowest forms of life, the month is but an aperture opening immediately into the body-cavity,... | |
 | James Orton - 1883 - Страниц: 424
...general structure of an animal from a sight of the teeth alone. For the same reason, they form important guides in the classification of animals; while their...sometimes suffice. 4. Deglutition, or How Animals Swallow. — In the lowest forms of life, the mouth is but an aperture opening immediately into the body-cavity,... | |
 | James Orton - 1884 - Страниц: 434
...general structure of an animal from a sight of the teeth alone. For the same reason, they form important guides in the classification of animals; while their...sometimes suffice. 4. Deglutition, or How Animals Swallow.—In the lowest forms of life, the mouth is but an aperture opening immediately into the body-cavity,... | |
 | James Orton - 1883 - Страниц: 428
...general structure of an animal from a sight of the teeth alone. For the same reason, they form important guides in the classification of animals; while their...structure is so peculiar that a fragment will sometimes suflice^V 1 4. Deglutition, or How Animals Swallow.—In the lowest forms of life, the mouth is but... | |
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... modified in accordance with the habits of the creature. They are, therefore, of great zoological value ; for, such is the harmony between them and their uses, the naturalist can predict the food and general structure of an animal from a sight of the... 
