89 



lever of the first order, the anterior extremity of which projects from 

 the mouth ; the posterior extremity within the mouth being acted upon 

 by the protrusors, and the fulcrum constituted by the palato-glossi 

 muscles (see diagram No. 4). 



3rd. The Genio-hyo-glossi muscles are disposed relatively to one 

 another at a very acute angle, salient forwards, and therefore taken 

 separately they act upon the tongue in protrusion, not in the direction 

 of its axis, but at an acute angle with it, carrying it to the opposite 

 side; but acting conjointly, and with equal force, they are mutually 

 corrective of one another, and carry the tongue directly forwards. 



And, 4th. As a necessary consequence, when the protrusor muscle 

 of one side is paralyzed, the other, acting without correction, will pro- 

 trude the tongue towards the side of paralysis. 



XX. — Catalogue op 101 Dea wings or Aechitectueal Antiquities, 



EEOM OE1GINAL SKETCHES, TEESENTED TO THE LlBEAEY OF THE KoYAL 



Ieish Academy. By Geoege V. Du Noyee, M.E.I.A., &c, District 

 Surveyor, Geological Survey of Ireland, to form Yol. IX. of a 

 similar donation. 



[Read November 11, 1867.] 

 Mellifont Alley, Co. Louth. 



No. 1. Yiew, looking N". N". W., of the choir of the great church. 

 This building has been erroneously regarded by recent writers as " the 

 great church of Mellifont Abbey," and surprise is expressed that it could 

 have contained the eleven high altars recorded to have been within it. 

 To any careful observer, it is evident that the building in question is 

 merely a choir of what may have been a church of noble proportions, 

 possibly of forty feet in width, and twice or more that in length. 



No. 2. Plan of the choir of the great church. From this it is evi- 

 dent that the so-called " doorway" is in reality the choir arch ; its 

 recessed pilasters being all on the interior face of the wall, the external 

 portion being flat — a style of architecture unknown in the construction 

 of church doorways. 



The remarkable narrowness of this choir arch is no doubt the re- 

 sult of careful design, with a view to render the choir as sacred as 

 possible, and allow but a glimpse from the body of the church into that 

 more sacred portion of it, which glittered with stained glass, gold, and 

 fresco painting.* 



No. 3. Choir arch. 



No. 4. "Window in south wall of the choir. 



No. 5. Quaint figure of an animal carved in high relief on the key- 

 stone of the outer arch. East window, from the same. 

 No. 6. Pilasters, N. W. angle of the choir. 



* See " Wilde's Beauties of the Boyne and Blackwater." 2nd edition. 



