Ordnance survey of the county of Londonderry / Colonel Colby ... superintendent. Volume the first.

  • Ordnance Survey of Ireland.
Date:
1837
Catalogue details

Licence: Public Domain Mark

Credit: Ordnance survey of the county of Londonderry / Colonel Colby ... superintendent. Volume the first. Source: Wellcome Collection.

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    Portlock’s direction, and the organization framed for carrying on the Survey, affording means for collecting and methodizing facts, which were never likely to recur, Lieutenant Larcom conceived the idea, that with such opportunities, a small additional cost would enable him, without retarding the execution of the maps, to draw together a work embracing every species of local information relating to Ireland. He submitted this idea to me, and I obtained the sanction of the Irish Government for carrying it into effect. To him I have intrusted the execution, and the present volume is the first public result. In a work so entirely new in its design, and so varied and elaborate in its details, the difficulty of obtaining complete materials can only be appreciated by those who have watched its progress;—and the persons engaged in it had many other duties to perform. A list of all those who have contributed more or less information would be little short of a list of the persons employed on the Survey. But it is necessary I should specially mention the following gentlemen : Captain Portlock, who has charge of the Geological branch of the Survey, and who, for this Memoir, undertook also the Natural History and Productive Economy sections ; having the assistance of Mr. David Moore in the botanical researches. The description of the Natural Features, Social Economy, and of the ancient and modern Buildings have been chiefly contributed by Captain Dawson, and his assistants, Mr. Ligar, Mr. Stokes, and Mr. Williams. The History and Antiquities have been drawn up by Mr. George Petrie, aided by Mr. John O’Donovan. As the other contributors have been less confined to particular sections, and the intimate connexion between the several sections, ren- ders it impracticable to assign their individual contributions, I only add, that I have been requested by Lieutenant Larcom, who has charge of the execution of the work, to acknowledge the assistance he has received from Mr. George Downes, who has contributed a variety of matter, and arranged the section “ People” in the city ; and also from Mr. Edward Singleton, to whom he has peculiarly committed the correc- tion of tabular matter and numerical calculations. THOMAS COLBY, Colonel Royal Engineers.