88
THE SCIENTIFIC ADVISERS.
Sets of Observations made with a six-inch repeating circle, at Maranham.
| Star. | Number of Observations. |
Latitude deduced. |
Observer. | ||
| ° | ′ | ″ | |||
| α Lyræ | 8 | 2 | 31 | 42.4 | Capt. Sabine |
| α Lyræ | 12 | 43.8 | Ditto | ||
| α Pavonis | 10 | 44.5 | Ditto | ||
| α Lyræ | 12 | 44.6 | Ditto | ||
| α Cygni | 12 | 42.1 | Ditto | ||
| α Gruris | 12 | 42.2 | Ditto | ||
| Mean latitude deduced from 66 observations 2° 31′ 43″.3. | |||||
In comparing these results, although the French observations were more than twenty times as numerous as the English, yet the deviations of the individual sets from the mean are greater. One second and three-tenths is the greatest deviation from the mean of the Maranham observations; whilst the greatest deviation of those of Formentera, is two seconds and two-tenths. If this mode of comparison should be thought unfair, on account of the greater number
fewer. The difference between the extremes of the altitude of Polaris, dedaced from sets taken above the pole by the same observers, amounts to seven seconds and a half.
