Celtic religion.

Notes on the distribution, history, grammar, and import of the Irish ogham inscriptions /

An Irish historical tract dated A.D. 721.

Clare Island survey.

"The Ulster difficulty" /

Report on screw steam boats, employed on the Grand Canal.

Report on the extension northwards of the Dublin and Drogheda Railway, and on its junction with lines in the North-East of Ireland recommended in the report of the Irish Railway Commissioners /

"The Boyne bridge :

its history ... together with the correspondence, etc., between the ...

Report on the means of preventing the overflow of the River Barrow between Bert Bridge and the junction of the Great and Little Barrow.

Report on a proposed line of railway from Dublin to Cashel [aft. Great Southern and Western] :

being the first division of a main trunk to the South and South West of Ireland including a branch therefrom to Athy and Carlow /

Report on the present state and proposed improvement of the Grand Canal Company's extensive floating and graving docks, at Ringsend /

Report of John MacNeill to the directors of the Dublin & Drogheda Railway Company, recommending a guage of 5 feet 2 inches for that line ...:

to which are added, a reply, and observations, addressed to Major-General Pasley .../

Canal navigation. :

on the resistance of water to the passage of boats upon canals, and other bodies of water, being the results of experiments /

Dublin and Drogheda railway extension :

report on the extension northwards of the Dublin and Drogheda railway : and on its junction with lines in the north-east of Ireland recommended in the report of the Irish Railway commissioners.

Tables for facilitating the calculation of earth work in the cuttings and embankments of railways, canals, and other public works /

Report on the present state of the works of the Grand Canal :

with suggestions for their repair and permanent improvement /

Correspondence and personal papers of Daniel O'Brien, circa 1893-1896.

An léightheoir Gaedhealach /