Extract from a paper on surveying. With 1 plate.

Míreanna comhchosúla

• On the improvement of the circumferentor, or common surveying compass. With illustration, and observations by James Lynch.
  de réir: Freeman, Richard
  Foilsithe / Cruthaithe: (1810)
• A plan for ascertaining the deviation of ships' compasses, arising from local attraction.
  de réir: Dillon, Thomas A.
  Foilsithe / Cruthaithe: (1853)
• A new form of position-finder for adaptation to ships' compasses. With 1 plate.
  de réir: Grubb, Howard Sir
  Foilsithe / Cruthaithe: (1904)
• Observations on the variation of the needle.
  de réir: Harding, Thomas
  Foilsithe / Cruthaithe: (1790)
• The County Surveyers of Ireland.
  Foilsithe / Cruthaithe: (1860)