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• The theory of Hadley's quadrant demonstrated : and from thence its nature, construction, and uses, are fully shewn. With a new table of the sun's declination for finding the latitude of the place. To which is added, a new construction of the quadrant, which, by Means of an artificial horizon, renders it of universal Use by Sea and Land. By Benj. Martin
  by: Martin, Benjamin
  Published: (1768)
• Directions for the use of Hadley's quadrant : with remarks on the construction of that instrument. By the Reverend Mr. Ludlam
  by: Ludlam, William
  Published: (1771)
• Description : use, and method of adjusting Hadley's quadrant and sextant. By George Adams, Mathematical instrument maker to His Majesty, and optician to His Royal Highness the Prince of Wales
  by: Adams, George
  Published: (1789)
• Directions for the use of Hadley's quadrant : with remarks on the construction of that instrument. With considerable corrections and additions. By the Reverend Mr. Ludlam, Late Fellow of St. John's College, Cambridge
  by: Ludlam, William
  Published: (1790)
• The Construction and use of the sea quadrant, commonly called Hadley's quadrant : Containing such directions, as are necessary to render the use of this noble instrument both easy and certain, particularly with respect to the back observation, which has been hitherto neglected for want of proper instructions. To which is added, an introduction, explaining the theory of the instrument in a plain and familiar manner, with correct tables of the sun's declination, which being calculated for four years are thereby rendered perpetual
  Published: (1757)