THE 



SCIENTIFIC PEOCEBDING-S 



OF THE 



ROYAL DUBLIN SOCIETY. 



Vol. III. (New Sekies). DECEMBEE, 1882. Part VI. 



CONTENTS. 



Page 

 XXVIII. Notes on tlie Recovery of Copper from its Solution in 

 Mine Drainage with Special Reference to the Wicklow 

 Mines, by Philip Argall and Gekrard A. Kinahan. 



Plates 22 and 23, . 302 



XXIX. Some ISTotes on the Geology of Bray Head, with a Geo- 

 logical Map and Sections, by Gekbakd A. Kinahan. 



Plates 24, 25, 26, 329 



XXX. Glacial Moraines on Mount Leinster, Counties Wexford 

 and Carlow, by G. H. Kinahan, m.r.i.a., &c. Plates 

 27, 28, and 29,' . . . . . . . , 334 



XXXI. On the Definition of Force as the Cause of Motion, with 

 some of the Inconveniences connected therewith, by 



Kev. Maxwell H. Close, m.a., 336 



XXXII. On Comets' Tails, by Geo. Fbas. Pitzgebald, m.a., 



F.T.c.n., &c., 344 



XXXIII. Palaeozoic Rocks of Galway and elsewhere in Ireland, 



said to be Laurentians, by G. H. Kinahan, bi.b.i.a., &c. 

 Plates 30, 31, and 32, 347 



XXXIV. On the Metamorphic Rocks of Cos. Sligo and Leitrim, 



and the enclosed Minerals, with Analysis of Serpentine, 

 &c., by Edward T. Habdman, f.c.s.; and Microscopical 

 Notes on the Serpentine, by Professor Hull, ll.d., f.r.s. 

 Plate 33, 357 



The Authors alone are responsible for all opinions exjiressed in their communications. 



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