INDEX SLIP. 



Hahtley, W. N., and Ramaob, Hugh. —A Detennination of the Wave- 

 lengths of the principal J.ines in the Speetnim of Gallium, showing 

 their identity with two Lines in the Solar Spectrum. 



Roy. Dublin Soc. Trans., S. 2, vol. 7, 1898, pp. 1-li. 



Kahaoe, Hugh, and Hartley, W. N. — A Determination of the Wave- 

 lengths of the principal Lines in the Spectrum of Gallium, showing 

 their identity with two Lines in the Solar Spectrum. 



Roy. Dublin Soc. Trans., S. 2, voL 7, 1898, pp. 1-6. 



Gallium, Determination of the Wave-lengths of the principal Lines in the 

 Spectrum of. 



Hartley, W. N., and Bamage, Hugh. 



Roy. Dublin Soc. Trans., S. 2, vol. 7, 1898, pp. 1-6. 



Wave-length, principal Lines in the Spectrum of Gallium. 

 Hartley, W. N., and Ramage, Hugh. 



Roy. Dublin Soc. Trans., S. 2, vol. 7, 1898, pp. 1-6. 



