( 2) 
9.—On the Conditions of Equilibrium of Deliquiescent and Hygroscopic 
* Salts of Copper, Cobalt, and Nickel, with respect to Atmospheric 
Moisture. By W. N. Hartley, r.z.s., Honorary Fellow of King’s 
College, London; Professor of Chemistry, Royal College of Science, 
Dublin. Plates XXIII., XXIV., and XXV. (July, 1901.) 
10.—A New Collimating-Telescope Gun-Sight for Large and Small Ord- 
nance. By Sir Howard Grubb, r.r.s., Vice-President, Royal Dublin 
Society. Plate XXVI. (August, 1901.) 
11.—Photographs of Spark Spectra from the Large Rowland Spectrometer 
in the Royal University of Ireland. Part I.—The Ultra-Violet 
Spark Spectra of Iron, Cobalt, Nickel, Ruthenium, Rhodium, 
Palladium, Osmium, Iridium, Platinum, Potassium Chromate, 
Potassium Permanganate, and Gold. By W. E. Adeney, p.sc., 
A.R.C.8¢.I., Curator and Examiner in Chemistry in the Royal Univer- 
sity of Ireland, Dublin. Plates XX VII. and XXVIII. (September, 
1901.) 
12.—Banded Flame-Spectra of Metals. By W.N. Hartley, ¥.x.s., Honorary 
Fellow of King’s College, London; Royal College of Science, Dublin; 
and Hugh Ramage, B.A., A.R.c.sc.1., St. John’s College, Cambridge. 
Plates XXIX. to XX XIII. (October, 1901.) 
13.—Variation : Germinal and Environmental. By J.C. Ewart, M.p., F.R.s., 
Regius Professor of Natural History in the University of Edinburgh. 
(October, 1901.) 
14.—The Results of an Electrical Experiment, involving the Relative 
Motion of the Earth and Ether, suggested by the late Professor 
FitzGerald. By Fred. D. Trouton, p.sc., F.x.s., University Lecturer 
in Experimental Physics, Trinity College, Dublin. (April, 1902.) 
15.—Some New Forms of Geodetical Instruments. By Sir Howard Grubb, 
F.R.s., Vice-President, Royal Dublin Society. Plate XXXIV. 
(May, 1902.) 
16.—Some Sedimentation Experiments and Theories. By J. Joly, p.sc., 
F.R.S., F.G.8., Hon. Secretary, Royal Dublin Society. (May, 1902.) 
[ The Title-page, Contents, and Index to Volume VII. will be found at the 
end of Part I., Vol. VILLI. | 
