 | Henry Southern, Sir Nicholas Harris Nicolas - 1826 - 384 pagine
...less than 1350 miles, a velocity equal to 57 miles an hour, supposing the hawk to have been on the wing the whole time ; but as such birds never fly by night, and allowing the day to be at its .greatest length, or 18 hours light, this would make 75 miles an hour. It is probable, however,... | |
 | 1826 - 382 pagine
...less than 1350 miles, a velocity equal to 57 miles an hour, supposing the hawk to have been on the wing the whole time ; but as such birds never fly by night, and allowing the day to be at its greatest length, or 18 hours light, this would make 75 miles an hour. It is piobable. however,... | |
 | William Rhind - 1830 - 262 pagine
...1350 miles, — a velocity nearly equal to 57 miles an hour, supposing the falcon to have been on the wing the whole time ; but as such birds never fly...his flight was perhaps equal to 75 miles an hour. But say that the flight of birds is about 50 miles an hour, how easily can they accomplish their most... | |
 | 1831 - 796 pagine
...computed to be not less than 1 350 miles, a velocity equal to 57 miles an hour, supposing the hawk to have been -on wing the whole time. But as such...night, and allowing the day to be at the longest, or to be of eighteen hours' light, this would make seventy-five miles an hour. It is probable, however,... | |
 | George Montagu - 1831 - 670 pagine
...computed to be not less than 1350 miles? a velocity equal to fifty-seven miles an hour, supposing the hawk to have been on wing the whole time. But as such birds...night, and allowing the day to be at the longest, or to he eighteen hours light, this wolrld make seventy-five miles an hour. It is probable, however,... | |
 | William Smellie - 1832 - 348 pagine
...1350 miles ; a velocity nearly equal to 57 miles an hour, supposing the falctm to have been upon the wing the whole time. But as such birds never fly by...equal to 75 miles an hour. It is probable, however, that he neither had so many hours of light in the twentyfour, to perform his journey, nor that he was... | |
 | John Timbs - 1832 - 356 pagine
...miles an hour, supposing the falcon to have been unceasingly on the wing. But, as such birds never fty by night, and allowing the day to be at the longest,...his flight Was perhaps equal to 75 miles an hour. If we even restrict the migratory flight of birds to 50 miles an hour, how easily can they perform... | |
 | John Timbs - 1832 - 442 pagine
...velocity nearly equal to .57 miles an hour, supposing the falcon to have been unceasingly on the wing. But, as such birds never fly by night, and allowing the day to be ntthe longest, his flight was perhaps equal to 75 miles an hour. If we even restrict the migratory... | |
 | William Hamilton Maxwell - 1833 - 640 pagine
...FALCONER, *. One who breeds and trains hawks. equal to fifty-seven miles an hour, supposing the hawk to have been on wing the whole time. But as such birds...night, and allowing the day to be at the longest, or to be eighteen hours light, this would make seventy-five miles an hour. It is probable, however,... | |
 | William Hamilton Maxwell - 1833 - 618 pagine
...miles ! a velocity eqaal to fifty. seven miles in an hour, supposing the hawk to have been on the wini the whole time. But as such birds never fly by night, and allowing the day to be at the longest, or to be eighteen hours light, this would make seventy-five miles an hour. It is probable, however,... | |
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... the wing the whole time. But as such birds never fly by night, and allowing the day to be at the longest, his flight was perhaps equal to 75 miles an hour. 
