184 



7. A peculiarly shaped stone celt, and a leaden cross, found at Newry : 

 presented by P. Bropliy Esq., Dawson-street. 



8. A number of copper coins : presented by Mr. James Murphy, 

 Lombard-street. 



9. Three tradesman's tokens, viz : — MacAvragh, of Belfast; "Wilson, 

 of Dublin ; and I^icholls, of Maryborough ; all found at the latter place : 

 presented by the Eev John O'Hanlon, C. C, of Dublin. 



10. A piece of a modern sword-blade; a very beautiful Y-shaped 

 flint arrow-head ; and the under and two upper stones of one of those pri- 

 mitive hand-mills called grain-rubbers in Dr. Wilde's Catalogue, Parti., 

 p. 104. The under stone has its loop on its side, and not on its back, 

 which is usual in perfect specimens of this kind : presented by Colonel 

 Edwards, of Eintona. 



James O'Eeilly, Esq., exhibited the following from the collection of 

 J. Summers, Esq.: — 1. A copper blade, of the scythe shape; length 

 about 12f inches — Mr. O'Reilly cannot say where it was found origi- 

 nally ; 2. A small brass or bronze spur, said to have been found at Dun- 

 shauglilin ; 3. A steel or iron arrow-head; 4. One of several cinerary urns 

 found on Tallaght Hill. 



The thanks of the Academy were voted to the donors and exhibitor. 



MONDAY, JUNE 23, 1862. 

 The Veey Rev. Chaeles Geaves, D. D., President, in the Chair. 

 On the recommendation of the Council, it was 



Resolved,— To authorize the Treasurer to sell out so much of the 

 Cunningham Eund Stock as will produce £61 4s. 4d., to pay the dif- 

 ference between the cost of the four Cunningham Medals lately awarded, 

 and the half-year's interest on the Stock, now due : the amount to be 

 sold out being part of the amount of Interest added to the Capital Stock 

 since the former award of Medals in 1858. 



The Rev. Dr. Lloyd read a paper — 



^On the peobasle Causes of the Eaeth-ctjeeents. 



In a former communication to the Academy, I endeavoured to prove 

 that the diurnal changes of the horizontal needle were the result of 

 electric currents traversing the earth's crust. The existence and con- 

 tinuous flow of such currents had been established, as I believe, by the 

 observations of Mr. Barlow, made on two of the telegraphic lines of 

 England ; and it only remained to show that their laws corresponded 

 with those of the magnetic changes. This part of the solution of the 

 problem has, I venture to think, been given in the paper above referred 

 to. 



