Nature, Količina 11Sir Norman Lockyer Macmillan Journals Limited, 1874 |
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Zadetki 1–5 od 80
Stran 5
... birds which are about us , to say nothing of an examination of the writings of foreign observers , will show that none of them are entirely free from the migratory impulse . Perhaps the nearest approach , among British birds , to an ...
... birds which are about us , to say nothing of an examination of the writings of foreign observers , will show that none of them are entirely free from the migratory impulse . Perhaps the nearest approach , among British birds , to an ...
Stran 6
... birds while migrating , I had especially in mind the almost peculiar case of the Scandinavian form of Bluethroat ( Ruticilla surcica ) , which winters in Egypt and the Nile Valley , and summers in the northern or mountainous parts of ...
... birds while migrating , I had especially in mind the almost peculiar case of the Scandinavian form of Bluethroat ( Ruticilla surcica ) , which winters in Egypt and the Nile Valley , and summers in the northern or mountainous parts of ...
Stran 8
... birds , only touched the ground . ' In this account nothing is said of any claw being attached to this hind toe , nor have I met with any description of a claw in other authors . I have there- fore thought it worth while to mention that ...
... birds , only touched the ground . ' In this account nothing is said of any claw being attached to this hind toe , nor have I met with any description of a claw in other authors . I have there- fore thought it worth while to mention that ...
Stran 9
... birds is remarkable for the great amount THE of anchylosis which takes place between its various constituents long before the period of adult life . So complete is this union , that the determination of the sepa- rate bones in a full ...
... birds is remarkable for the great amount THE of anchylosis which takes place between its various constituents long before the period of adult life . So complete is this union , that the determination of the sepa- rate bones in a full ...
Stran 10
... birds , which is , however , united with the basi - sphenoid . In front of the depressed basi - sphenoidal region ... bird , where the beak is move- able upon a sort of hinge formed by the premaxillæ just above this point . The membrane ...
... birds , which is , however , united with the basi - sphenoid . In front of the depressed basi - sphenoidal region ... bird , where the beak is move- able upon a sort of hinge formed by the premaxillæ just above this point . The membrane ...
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