498 
evident at the close of the battle, at 6 p.m., when the returned tide pre-. 
vented the escape of the Danes from the Clontarf shore to the north 
bank of the Liffey. 
Sir W. R. Hamilton and the Rey. Dr. Todd made some remarks on 
the foregoing paper. 
MONDAY, MAY 27, 1861. 2 
The Very Rey. Coartes Graves, D. D., President, in the Chair. 
A LETTER was read from Major-General Sir Thomas R. Larcom, relative 
to the Treasury Minute concerning Treasure Trove in Ireland. Where- 
upon 
Ir was Resotvep,—That the respectful thanks of the Royal Irish 
Academy are due, and are hereby presented, to the Lords of her Majesty’s 
Treasury for the liberal manner in which they have provided for the pre- 
servation of articles of Treasure Trove, and for the favour they have done 
the Academy in making it the depository of such objects. 
Tr was atso Resotvep,—That the Royal Irish Academy, in acknow- 
ledgment of his Excellency the Lord Lieutenant’s gracious interference 
on its behalf, in reference to the articles of Treasure Trove in Ireland, is 
bound, and takes the present early opportunity to tender its grateful ac- 
knowledgments of the same; and begs to assure his Excellency that it 
will deem it a privilege to renderits best as sistance and co-operation in 
furthering a measure so likely to conduce to the advancement of anti- 
quarian studies and the extension of the National Museum. - 
Ir was atso Resotvep,—That the President be requested to com- 
municate to Major-General Sir Thomas A. Larcom the Academy’s sense 
of the value of his services in regard to the arrangements lately made 
concerning Treasure Trove in Ireland, which are so likely to conduce to 
the furtherance of antiquarian studies, and the advantage of an Institu- 
‘tion in whose welfare he has always taken such a lively interest. 
The Rey. Dr. Topp, V. P., read the following paper :— 
SOME REMARKS ON THE HISTORY OF THE BATTLE OF CLONTARF, IN CONNEXION 
WITH MR. HAUGHTON’S DETERMINATION OF THE TIME OF HIGH WATER IN 
DUBLIN BAY ON GOOD FRIDAY, APRIL 23, 1014. 
Havine met with a statement in an ancient authority, to which Mr. 
Haughton has already called the attention of the Academy, that on the 
day of the battle of Clontarf, the time of high water coincided with the 
hour of sunrise in Dublin Bay, it occurred to me that this circumstance 
afforded a means of testing the accuracy of the narrative. I knew that 
Mr. Haughton had undertaken, and in part executed, the arduous task 
of reducing the tidal observations collected some years ago under the 
auspices of the Academy, and that he had also, for a reason which he 
will himself have an opportunity of explaining to you this evening, paid 
il 
