468 
time. And he added, that in such instances the original or 
more ancient work was invariably of a higher style of art and 
better execution than that of such subsequent additions. He 
also observed that the crucifix which is now so usually found 
on such reliquaries is always, obviously, an addition of a later 
date, and is, in all the instances which have come under his 
attention, in a more barbarous taste than that of the original, 
or older work, and is besides of an inferior style of execution. 
The Secretary presented, on the part of G. C. Cowell, 
Esq., Prospect House, Milltown, two volumes of Autograph 
Manuscripts of Jonathan Swift, D. D., Dean of St. Patrick’s, 
Dublin; one being an account of his daily expenses from May 
to August, 1735, and a list of his tenants in the Deanery and 
at Rathbeggan, with the sums payable by them in the year 
1734; the other being a collection of thirty-five songs and 
poems. 
The special thanks of the Academy were given to Mr. 
Cowell for this donation. 
Rev. Samuel Haughton read an account of the late Pro- 
fessor M‘Cullagh’s Lectures on Attractions, and Clairaut’s 
Theorem, reported by Mr. Allman. 
Professor M‘Cullagh’s Lectures on Attractions were de- 
livered to the Candidates for Fellowship in Trinity College in 
Hilary and Michaelmas Terms, 1846. 
Mr. M‘Cullagh’s Lectures included the attraction of an 
ellipsoid on a point situated outside it, the attraction of any 
body on adistant point, and the application of these problems 
to the Figure of the Earth and Clairaut’s Theorem. 
The attraction of an ellipsoid on a point outside may be 
reduced by means of Ivory’s Theorem to the attraction of ano- 
ther ellipsoid on a point inside, and the attraction of an ellip- 
soid on a point inside is reducible, by means of a well-known 
