 | 1902 - عدد الصفحات: 642
...conceal themselves and escape. Smaller animals are usually, also, more prolific than larger ones. ' The actual presence, therefore, of small species of...families formerly existed is not the consequence of any gradual diminution of the size of such species, but is the result of circumstances which may be... | |
 | 1851 - عدد الصفحات: 1248
...conceal themselves and escape. Smaller quadrupeds are usually, also, more prolific than larger ones. The actual presence therefore of small species of animals in countries where the larger species of the same natural families formerly existed, is not to be ascribed to any gradual... | |
 | 1851 - عدد الصفحات: 438
...conceal themselves and escape. Smaller quadrupeds are usually, also, more prolific than larger ones. The actual presence, therefore, of small species of animals in countries where the larger species of the same natural families formerly existed, is not to be ascribed to any gradual... | |
 | 1851 - عدد الصفحات: 450
...conceal themselves and escape. Smaller quadrupeds are usually, also, more prolific than larger ones. The actual presence, therefore, of small species of animals in countries where the larger species of the same natural families formerly existed, is not to be ascribed to any gradual... | |
 | Sir George Cornewall Lewis - 1852 - عدد الصفحات: 500
...conceal themselves and escape. Smaller quadrupeds are usually, also, more prolific than larger ones. The actual presence, therefore, of small species of animals, in countries where the larger species of the same natural families formerly existed, is not to be ascribed to any gradual... | |
 | Royal Society (Great Britain) - 1854 - عدد الصفحات: 438
...conceal themselves and escape. Smaller quadrupeds are usually, also, more prolific than larger ones. The actual presence therefore of small species of animals in countries where the larger species of the same natural families formerly existed, is not to be ascribed to any gradual... | |
 | Royal Society (Great Britain) - 1854 - عدد الصفحات: 450
...conceal themselves and escape. Smaller quadrupeds are usually, also, more prolific than larger ones. The actual presence therefore of small species of animals in countries where the larger species of the same natural families formerly existed, is not to be ascribed to any gradual... | |
 | Richard Owen - 1859 - عدد الصفحات: 120
...large ones. Those of the bulk of the mastodons, megatheria, glyptodons, and diprotodons, are uniparous. The actual presence, therefore, of small species of...circumstances which may be illustrated by the fable «f the 'Oak and the Reed;' the smaller and feebler animals have bent and accommodated themselves to... | |
 | 1859 - عدد الصفحات: 448
...the same natural families formerly existed, is not the consequence of any gradual diminution of tho size of such species, but is the result of circumstances...animals have bent and accommodated themselves to changes which have destroyed tho larger species." No doubt the type-form of any species is that which is best... | |
 | Richard Owen - 1859 - عدد الصفحات: 118
...large ones. Those of the bulk of the mastodons, megatheria, glyptodons, and diprotodons, are uniparous. The actual presence, therefore, of small species of...families formerly existed, is not the consequence of degeneration—of any gradual diminution of the size—of such species, but is the result of circumstances... | |
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... of any gradual diminution of the size of such species, but is the result of circumstances, which may be illustrated by the fable of the ' Oak and the Reed ; ' the smaller and feebler animals have bent and accommodated themselves to changes which have... 
