TRANSACTIONS (SERIES II.). 
Vout. I.—Parts 1-25.—November, 1877, to September, 1883. 
Vou. I1.—Parts 1-2.—August, 1879, to April, 1882. 
Vou. ILI.—Parts 1-14,—September, 1883, to November, 1887. 
Vou. [V.—Parts 1-14.—April, 1888, to November, 1892. 
Vout. V.—Parts 1-13.—May, 1893, to July, 1896. 
Vou. VI.—Parts 1-16.—February, 1896, to August, 1898. 
VOLUME VIL. 
Parr 
1. 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. By W. N. Hartrny, 
F.R.S., and HuegH RamaGgE, a.R.c.sc.1. Plate I. (August, 1898.) Is. 
