EXPLANATION OF THE PLATES AND WOOD-CUTS. 



Plate IL 



Contains a Geological Map of the South of Ireland ; 

 Also a Geological Map of all Ireland. 



WOOD-CUTS ILLUSTRATIVE OF MR. WEAVER'S PAPER. 



Plan and Section of Muckruss Copper Mine : p. 29. 



Plan and Section of Ross Island Copper Mine, with the embankment against the Lake 



of Killarney : p. 30. 

 Diagram illustrative of the relative position of the properties in the coal district south, 



west of Kanturk : p. 51. 

 Plan and Sections of the Annagh Lead Mine, near Castlemaine : p. 64. 



N.B. I take this opportunity of noticing, that in the 5th Vol., First Series, 

 of the Geological Transactions, and Plate VII., View No. 4, of ray Me- 

 moir on the East of Ireland, the words " Keeper mountain" are engraved 

 in a wrong position. They should have been placed over the round 

 topped mountain, which is situated immediately west of the western 

 " Bilboa mountains." 



PLATE III. 



Map illustrative of Mr. Bryce's Memoir on the north-eastern part of the county of 

 Antrim : p. 69 to 81. 



PLATE IV. 



Lithographic Drawing of the Squaloraia, described in Dr. Riley's Memoir : p. 83 to 88. 

 Figs. 1. 2. 3. Magnified representations of a scale. (This plate has been copied, by 

 permission of M. Agassiz, from Table 42, Recherches sur les Poissons Fossiles.) 



PLATE V. 



Illustrates Capt. Bayfield's paper on the Geology of the North Coast of the St. Law- 

 rence : p. 89 to 102. 



Fig. 1. Sketch of the River and Gulf of St. Lawrence : p. 89. 



Fig. 2. Natural columns of limestone on the east side of Niapisca Island, one of the 

 Mingan Islands : p. 93. 



This drawing was made by Mr. Bowen, R.N., not with reference to geo- 

 logical phenomena, but on account of the picturesque beauty of the 

 columns. 



