| Edinburgh encyclopaedia - 1830 - 828 pages
...supposing the day to have been at the longest, or to have lasted eighteen hours. It is probable, however, that he neither had so many hours of light in the twenty-four, nor that he was retaken the moment of his arrival, so that we may fairly conclude much less time was... | |
| George Montagu - Birds - 1831 - 670 pages
...or to he eighteen hours light, this wolrld make seventy-five miles an hour. It is probable, however, that he neither had so many hours of light in the twenty-four to perform the journey, nor that he was retaken the moment of his arrival, so that we may fairly conclude much... | |
| 1831 - 796 pages
...to be of eighteen hours' light, this would make seventy-five miles an hour. It is probable, however, that he neither had so many hours of light in the twenty-four, to perform the journey, nor that he was retaken at die moment of his arrival, so that we may fairly conclude much... | |
| William Smellie - Anamals - 1832 - 348 pages
...day to be at the longest, his flight was perhaps equal to 75 miles an hour. It is probable, however, that he neither had so many hours of light in the...migratory flight of birds to the rate of 50 miles an hour, how easily can they perform their most extensive migrations ! and we know, in the case of woodcocks,... | |
| Gilbert White - Natural history - 1833 - 410 pages
...or to be eighteen hours light, this would make seventy-five miles an hour. It is probable, however, that he neither had so many hours of light in the twenty-four to perform the journey, nor that he was retaken the moment of his arrival, so that we may fairly conclude much... | |
| William Hamilton Maxwell - Amusements - 1833 - 640 pages
...or to be eighteen hours light, this would make seventy-five miles an hour. It is probable, however, that he neither had so many hours of light in the twenty-four to perform the journey, nor that he was retaken the moment of his arrival, so that we may tairly conclude much... | |
| William Hamilton Maxwell - Amusements - 1833 - 618 pages
...eighteen hours light, this would make seventy-five miles an hour. It is probable, however, that be neither had so many hours of light in the twenty-four to perform tbe journey, nor that he was retaken tbe moment of bis arrival, so that we may fairly conclude much... | |
| Gilbert White - Natural history - 1834 - 392 pages
...or to be eighteen hours light, this would make seventy-five miles an nour. It is probable, however, that he neither had so many hours of light in the twenty-four to perform the journey, nor that he was retaken the moment of his arrival, so that we may fairly conclude much... | |
| Industrial arts - 1836 - 702 pages
...or to be eighteen hours light, this would make seventy-five miles an hour. It is probable, however, that he neither had so many hours of light in the twenty-four to perform the journey, nor that he was taken on the moment of his arrival, so that we may fairly conclude much... | |
| John Fleming - Geochemistry - 1851 - 272 pages
...the whole time. But as such birds never fly by night, and allowing the day to be at the longest, the flight was perhaps equal to 75 miles an hour. It is...migratory flight of birds to the rate of 50 miles an hour, how easily can they perform their most extensive migrations! And we know, in the case of woodcocks,... | |
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