INDEX TO VOLUME VIL. 
A. 
Absorption Spectra and Chemical Constitution of 
Saline Solutions, Action of Heat on the (Harr- 
LEY), 253. 
Actiniaria, Jamaican (DurrpEn), 133. 
Adeney (W. E.). Photographs of Spark-Spectra 
from the Large Rowland Spectrometer in the 
Royal University, [Dublin]. Part I. The Ultra- | 
Violet Spark-Spectra of Iron, Cobalt, Nickel, 
Ruthenium, Rhodium, Palladium, Osmium, 
Iridium, Platinum, Potassium Chromate, Potas- 
sium Permanganate, and Gold, 831. 
B. 
Banded Spectra with Lines of Nickel, Cobalt, 
Rhodium, and Iridium (Harriey and Ramace), 
339. 
Barrett (W. F.). On some Novel Thermo- 
Electric Phenomena, 127. 
Barrett (W. F.), Brown (W.), and Hapriexp 
(R. A.). On the Electrical Conductivity and 
Magnetic Permeability of various Alloys of 
Tron, 67. 
Cc. 
Crustacea Schizopoda of Ireland, Report on the 
(Hort), 221. 
D. 
Duerden (J. H.). Jamaican Actiniaria. Part II. 
Stichodactyline and Zoanthesx, 133. 
E. 
Earth, An Estimate of the Geological Age of the 
(Jory), 23. 
Earth and Ether: Results of an Electrical Ex- 
periment for detecting any Relative Velocity 
between them (Trouton), 379. 
TRANS. ROY. DUB. SOC., N.S. VOL. VII. 
Kither: Relative Motion of the Earth and Ether ; 
Results of an Electrical Experiment involving 
such Motion (TrRouron), 379. 
Hlectrical Conductivity and Magnetic Permeability 
of Alloys of Iron (Barrett, Brown, and Hap- 
FIELD), 67. 
Equilibrium of Deliquescent and Hygroscopic 
Salts of Copper, Cobalt, and Nickel, Conditions 
of, with respect to Atmospheric Moisture 
(Harrier), 313. 
Ewart (J. C.). Variation: Germinal and En- 
vironmental, 858. 
F. 
Flutings in Flame-Spectra of Metals (Harrizy 
and Ramace), 339. 
G. 
Gallium, Determination of the Wave-lengths of 
the principal Lines in the Spectrum of (HartriEy 
and Ramage), 1. 
Geodetical Instruments, some New Forms of 
(Gruss), 385. 
Geological Age of the Harth, An Estimate of the 
(JoLy), 23. 
Grubb (Sir Howarp). A new Collimating-Tele- 
scope Gun-Sight for Large and Small Ordnance, 
321. 
— Some New Forms of Geodetical Instruments, 
385. 
Gun-Sight consisting of a Collimating Telescope 
adaptable for Large and Small Ordnance 
(Gruss), 321. 
H. 
Hartley (W. N.). The Action of Heat on the 
Absorption Spectra and Chemical Constitution 
of Saline Solutions, 253. 
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