298 



Proceedings of the Royal Irish Academy. 



KiUiney Hill — continued. 



74. Depression between old Telegraph Hill and Obelisk 



Hill, general direction, JST™- 8°-10° E. 



75. On road at Killiney House, contact of granite and 



mica schist, ,, 46° E. 



76. 40 yards west of entrance to Killiney Castle, great 



Eurite dyke, vertical and much banded, . . ,, 24° E. 



Killiney Park : — 



77. Contact of granite and slate rock, fault (the direction 



of the contact line runs out between the two 

 Sugar-loaves), ....... 



78. Joint cutting off the banded granite or gneiss to 



the east, ........ 



79. Contact of granite and slate rock at western end 



in park, ........ 



80. Contact direction taken on a line 4™" from face of 



joiat and parallel to it, about 30 yards long, 



81 . Eui'ite vein on west side of Park, apparent direction, 



82. ,, ,, to the west, near the new Quarries, 



83. Band of Eiu-itic granite here, .... 



84. Face of granite joint, well marked, as if of bedding 



(dip south at 62°), ...... 



85. Eurite band here, . . . . . 



39° E. 



47°-50° E. 



42° E. 



39°-40° E. 

 26° W. 

 26° W. 

 27° W. 



25° W. 

 54° W. 



Dalkey Island : — 



86. East of Boat Harbour, repeated vertical joiating, . 



87. ,, ,, ,, great Eurite vein, vertical, 



0m-50-0™-80 thick, 



88. ,, ,, ,, joint further east, 



89. ,, ,, ,, set of joints, 



90. „ „ „ ,, _„ 



91. ,, ,, ,, big joint looking towards 



Bailey Light-house, 



92. On east side, north-east point, joint, . 



93. Near easternmost poiat, two joints at an interval 



of 3'n-, 



94. North-east point, opposite Muglins, set of quartz 



joints, .... 



95. ,, ,, ,, Eurite vein with felspar crystals 



96. ,, ,, ,, vertical joint at same point, 



97. Near rocking stone in little inlet, Eurite veia 0'"'50 



thick, vertical, 



98. ,, ,, ,, Eurite vein close by, 



99. Jointing parallel to south-east coast line, 



100. Just imder Battery, Eurite vein, 1™' thick (a series 



of these extending to the south-west shore line), 



101. Between Martello Tower and Battery, jointing, 



102. Under Martello Tower, jointing, . 



103. „ „ „ „ . . . 



104. Near south corner of enclosed field, 



105. North corner 



70° W- 



6°-7° W. 



6°-7° W. 

 26°-28° E. 

 28°-30° E. 



38°-40° E. 

 43° E. 



42°-43° E. 



7°-8° "W". 

 23°-24° W. 

 7°-7°30' W. 



22° 30' W. 

 28°- 30° W. 

 37°-38° E. 



18°- 19° W. 



30° E. 

 48°-49° E. 

 16°- 17° E. 



68° E. 



51° E. 



