and Chalk at Goodland Cliff and Torr Eskert. 



183 



foot; containing quartz pebbles, green sand, and numerous, red, siliceous 

 grains, some of which resemble garnets, and others carnelians. This stratum 

 rests on soft, leafy, mica slate, regularly stratified, and dipping north-west at 

 an angle of 10° from the horizon. 



The syenite is divided into large masses, which in several places are sepa- 

 rated by intervening chalk, containing quartz pebbles and green sand, also 

 numerous fragments of the fossils, usually met with in the green sand of 

 the north of Ireland. The views, Nos. 4 and 5, represent the connexion of 

 the chalk and syenite at Torr Eskert. 



It is to be observed that in the vertical masses of chalk (see wood-cut. 

 No. 4.) the numerous fragments of belemnites, shells, and other fossils, are 

 also nearly vertical ; and consequently are not in the position in which they 

 were deposited. In examining closely the line of contact between the syenite 

 and the chalk, it will be seen that the elevations and depressions of the out- 

 line, are accurately filled with the syenite. It is also to be observed that the 

 chalk, in immediate contact with the syenite, is unusually compact, and that 

 the colour is changed from yellowish white to reddish white. 



No. 4. 





Connexion of chalk and syenite at Torr Eskert. a, mica slate ; d, chalk ; c, syenite. 



One of the specimens (No. 10.) presented to the Society's Museum* contains a wedge of chalk, 

 included in the syenite, and the lower part is so compact as to assume the appearance of marble, 



* The specimens alluded to in the Memoir are in the Museum of the Geological Society. 



