477 
themselves supposed to be roots of that equation. When 
these conditions are not satisfied, the theorem (C) takes 
other forms, which, with other analogous results, may be 
deduced from the same principles.” 
Mr. Petrie exhibited an ancient Irish consecrated bell, 
recently obtained by the Dean of St. Patrick’s, and which 
had been for many generations in the possession of a family 
named Hanan, or O’Hanan, in the county of Armagh. This 
bell is of the usual quadrangular form, in use amongst the 
Irish from the introduction of Christianity into the country 
till the close of the eleventh century, but has an approxi- 
mation to the round form which became general after the 
latter period. The age of this bell can be determined with 
perfect accuracy, from the following inscription in the ancient 
Irish character which is carved upon it. 
+ OR ap Cumarpeach me Cilla, 
or “ Pray for Cumuscach the son of Ailill.” 
The death of this Cumuscach, who was Economist of the 
Cathedral of Armagh, is recorded in the Annals of the Four 
Masters at the year 904. His mother, who was named 
Gormlaith, was a daughter of Murdach King of Ulster. 
The Academy then adjourned to Monday the 9th of 
November. 
DONATIONS. 
Archaeologia. Vol. XXVIII. Presented by the Society of 
Antiquaries of London. — 
Transactions of the Zoological Society of London. Vol. 
II., Parts 1, 3, 4, and Proceedings, Nos. 4, 5, 6,7. Pre- 
sented by the Society. 
Cambridge Astronomical Observations for the Year 1838. 
By the Rev. James Challis, M.A. Presented by the Author. 
