299 
Monpay, May 247n, 1852. 
THOMAS ROMNEY ROBINSON, D.D., Presivent, 
in the Chair. 
nt iat allie 
Mr. J. Husanp Smiru exhibited a stone urn, with a glass 
urn, found in a tumulus at Dunadry, county of Antrim. 
On its surface there was a rich, black, loamy soil, and the 
farmer on whose land it was, having resolved to spread it over 
the adjoining ground, proceeded to remove it for that purpose, 
and in doing so came to the cairn, in which he discovered, at 
a depth of three feet from the surface, on the eastern side, and 
lying horizontally, a human skeleton, having on its head a ring 
of lignite, and at the feet the stone urn, and alittle glass ring. 
The urn was distinguished from those found hitherto, by hay- 
ing handles at the sides and a brass cover upon the top. The 
mound, which was exceedingly large, was now entirely effaced. 
A vote of thanks was passed to Mr. Smith. 
eer eae ee 
PRP OCA, Rh Pe 
Sir William R. Hamilton read a supplementary Paper in 
illustration of his communication of the 8th of December last, 
on the connexion of Quaternions with continued fractions and 
quadratic equations. 
Tn this paper he assigned the four Biquaternions which are 
_ the imaginary roots of the equation 
: Gg = git); 
and showed that these were as well adapted as the two real 
~ roots assigned in his former communication, to furnish the real 
i quaternion value of the continued fraction, 
nobel 
VOL. V. QF 
