| 1828
...higher latitudes, where the change of the sun's altitude during the twenty-four hours is still less **perceptible, it would have been essentially necessary...opposite to, or 180° from, the right one. To obviate the** poisibility of this, we had some chronometers constructed by Messrs. Parkinson and Frodsham, of which... | |
| 1827
...change of the sun's altitude during the twenty-four hours is still less perceptihle, it would have heen **essentially necessary to possess the certain means...intended to return, on a meridian opposite to, or** 180o from, the right one. To ohviate the possihility of this, we had some chronometers constructed... | |
| Robert Walsh - 1828
...hours running to twenty-four, that is, the hour hand made one revolution from meridian to meridian. **"An error of twelve hours of time, would have carried...intended to return, on a meridian opposite to, or** ISO0 from the right one." The ice described as having been passed over on the 26th June, was of a very... | |
| 1828
...of the sun•s altitude during the twenty-four hours is still less perceptible, it would have heen **essentially necessary to possess the certain means...right one. To obviate the possibility of this, we** bad some chronometers constructed by Messrs. Parkinson and Frodsham, of which the hour-banJ made only... | |
| William Gifford, Sir John Taylor Coleridge, John Gibson Lockhart, Whitwell Elwin, William Macpherson, William Smith, Sir John Murray IV, Rowland Edmund Prothero (Baron Ernle), George Walter Prothero - 1828
...during the twenty-four hours is still less perceptible, it would bare been essentially necessary t« **possess the certain means of knowing this ; since...intended to return, on a meridian opposite to. or** ISO0 from, the right one. To otniate the possibility of this, we had some chronometers constructed... | |
| Robert Walsh, John Jay Smith - 1828
...hours is still lees perceptible, it woutd have been essentially necessary to possess the certain menus **of knowing this ; since an error of twelve hours of...some chronometers constructed by Messrs? Parkinson** end Frodsham, of which the hour-hand made; only one revolution in the day, the twenty-four hours being... | |
| Sir John Barrow - 1846 - 359 páginas
...higher latitudes, where the change of the sun's altitude during the twenty-four hours is still less **perceptible, it would have been essentially necessary...opposite to, or 180° from, the right one. To obviate the** possihility of this, we had some chronometers constructed by Messrs. Parkinson and Frodsham, of which... | |
| Sir Albert Hastings Markham - 1879 - 347 páginas
...higher latitudes, where the change of the sun's altitude during the twenty-four hours is still less **perceptible, it would have been essentially necessary...intended to return, on a meridian opposite to, or** 1 80° from, the right one. To obviate the possibility of this, we had some chronometers constructed... | |
| Sir Albert Hastings Markham - 1879 - 347 páginas
...higher latitudes, where the change of the sun's altitude during the twenty-four hours is still less **perceptible, it would have been essentially necessary...to possess the certain means of knowing this; since** ao error of twelve hours of time would have carried us, when we intended to return, on a meridian opposite... | |
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