58 On the Transit Instrument in determining Latitude. 
By both B. A. C. and 
others. 
| 
By other Cata- 
| ByBA.C. | "7 iCenes. 
Sei Pra. Mean. Prs Mean. . 
| 
of a second, or ten feet on the earth’s surface. That this ex- 
tremely close accordance, however, of results from sets com 
of so few pairs, is in a measure accidental, may be inferred from 
the larger pone errors of these results as given in column &. 
Had there been three sets, instead of four, the differences would 
have been somewhat greater, though still not exceeding a few 
tenths of a secon | 
o Mean Lat. 
a | results, de 
I | 23 41°18! 42''-46) 20 |41918/! 42°/34)| 43 (41918! 42’’-4o} +015 | 0/797) id 
2 | 21 42 +35), 14 42 *60}| 35 42 45) +o co 
3 \or 42 32) 14 42 36, 35 42 *34| +0 +17| +1 02) 
- 22 | 42 +35) 18 42 *53}| 4o 42 *43| +o +12|+0 76 
All| 87 41 18 42 -37/66|41 18 42 +45|)| 153 |41 18 42 -41| +0 -o7| +0 -88 
| +0 sed + 0°10 Mean of the 
E’ + 0 ‘97 tt. 0 ‘80} hole. 
