[October, 1901.] ^9 



THE 



SCIENTIFIC TRANSACTIONS 



ROYAL DUBLIN SOCIETY, 



VOLUME VII.— (SERIES II.) 



XII. 

 BANDED FLAME-SPECTRA OP METALS. 



BY 



W. N. HARTLEY, F.R.S., 

 Honorary Fellow of King's College, London ; Royal College of Science, Dublin ; 



AND 



HUGH RAMAGE, B.A., A.R.C.Sc.L, 

 St. John's College, Cambridge. 



(Plates XXIX. to XXXIII.) 



DUBLIN: 



PUBLISHED BY THE ROYAL DUBLIN SOCIETY. 



WILLIAMS AND NOKGATE, 



14, HENRIETTA STREET, COVENT GARDEN, LONDON ; 



20, SOUTH FREDERICK STREET, EDINBURGH; and 7, BROAD STREET, OXFORD. 



PRINTED AT THE UNIYEESITY PEESS, BY PONSONBY AND WELDPJCK. 



1901. 



Price One Shilling. 



