188 



diate neighbourhood of the place. On trying to break the large 

 stone, or move it with crowbars, it was ascertained that it was 

 not very thick; and with the assistance of a largesledge hammer 

 it was broken into several pieces. One of these fell down, 

 leaving an opening in the roof of a chamber or tomb. The 

 stone now broken appeared to have been originally placed on 

 others, which formed the sides of a complete kiswain, very 

 similar to that described in the Proceedings of the Academy 

 (vol. i. p. 188). Like that one found in the Phoenix Park, 

 it contained a skeleton, whose head has all the characteristics 

 which distinguish the two found in that tomb ; but in this, 

 the vase or urn, herewith presented, was found within the 

 limits of the chamber, and placed on the north side of the ske- 

 leton. It was about half full of a black sooty substance, but 

 it contained no bones like the urns found in the Park. Its 

 contents were examined by the people present, and, not being 

 supposed to be of any interest, were thrown away. 



Near the tomb were discovered a number of small cham- 

 ber tombs, without covering stones. These had all been pre- 

 viously opened. Fragments of burned bones were discovered 

 in several ; and on the east of the kiswain was found a pit, 

 about five feet deep, with walled sides. This appeared to have 

 been used as a depository for burned bones and ashes, with 

 which it was filled. At some distance the fragment of the 

 urn also presented was found near the surface. The cha- 

 racter or style of the workmanship differs from that of the urn 

 found in the tomb, but it exactly resembles an urn in the Mu- 

 seum, found, under similar circumstances, at the hill of Rath, 

 near Drogheda. 



Professor Graves communicated the following note : 

 It has been shown by Professor MacCuUagh* that the 

 equation of the central surface of the second order, 



a;2 y'i z^ 



Clo ^0 Cq 



* Proceedings of the Royal Irish Academy, vol. iii. p. 429. 



