67 
Latitude. Longitude. 
Names of Stations. 
Oa is Omragely, 
53.51.15 9.14.54 
Castlebar Spire 
53.45.32 9.36.28 
Croaghpatrick 
9.46.44 
53.38. 8 
Mulrea 
53.49.32 9.55.55 
Clare Island Light Hous 
Achill Head 
53.58.13 10.12.25 
Mullet tower 4 54.15.22 9.54.38 
54.18.46 9.33.58 
| Glinsk tower 5 
Downpatrick Head 54.19.36 9.17.59 
I have calculated the above, from intersections that 1 took of Croaghpatrick, in connection 
with Mr. Bald’s triangulation of Mayo. The radius of the equator taken at 20918230 feet, and 
the ellipticity 53,- 
VOL. XIV. N 
