ae CONTENTS. 
.—A Contribution to the Theory of the Order of Crystallization 
: “A.R.C.Sc.J., B.A. (Plates XXII. and XXIII.), ; 
<.—On the Theory of the Stratified Discharge in Geissler Tubes. 
: By H.V. Gii1, 8.J., Clongowes Wood College, Co. Kildare, 
I.—Prospecting for Gold in Co. Wicklow, and an Examination 
Lyzurn, A.R.C.Sc.1., F.G.S., Mining Engineer, Pre- 
_ toria. (Plates XXIV. and XXV. ‘\, 
.—On some Problems connected with Atmospheric Carbonic 
Anhydride, and on a New and Accurate Method for 
Determining its Amount Suitable for Scientific Expedi- 
tions. By Proresson E. A. Letts, D.Sc., Pu.D., and 
Bee. R. F. Brake, F.1.C., F.C.S., Queen’s College, Belfast, 
IIJ.—On a Simple and Accurate Method for Estimating the 
Dissolved Oxygen in Fresh Water, Sea Water, Sewage 
Effluents, &c. By Proressor E. A. ‘Lerrs, D.Sc., P#.D., 
and R. F. Buaxg, F.1.C., F.C.8., Queen’ s College, Belfast, 
XIV. —The Application of the Kitson Light to Light-Houses and 
other places where an Extremely Powerful Light is 
required. By Jonn R. WieHam, M.R.LA., 
XY. —On the Pseudo-opacity of Anatase. By J. if OLY, Sc. De 
ae F.R.S., Hon. Secretary, Royal Dublin Society, 
—Incandescent Electric Furnaces. By J. Jory, M.A., Sc. D., 
_ £¥.R.S., Hon. Secretary, Royal Dublin Society, Professor 
ed Geology and Mineralogy in the University of Dublin, 
J.—On an Improved Method of Identifying Crystals in Rock 
Sections by the Use of Birefringence. By J. Jory, M.A., 
Se.D., F.R.S., Hon. Sec., Royal Dublin Society, Professor 
eae of Geology and Mineralogy i in the University of Dublin, 
VIII.—A New Thermo-Chemical Notation. By JAmxs Hots 
Porno, “BoSC)) °°. 
.—On the Synthesis of Galactosides. By Proressor Hue 
Ryan, M.A., D.Sc., F.R.U.I., and W. SLOAN MILLs, 
M.A. , University College, Dublin, . 
1.—On the Synthesis of Glucosides. By Proressor Hue 
Ryan, M.A., D.Sc., F.R.U.I., University College, Dublin, 
[.— On the Preparation of Amidoketones. By Proressor Huexw 
Ryan, M.A., D.Sc., F.R.U.I., Catholic University School 
af of Medicine, "Dublin, ‘ 
I.—A Theory of the Molecular Constitution of Supersaturated 
a Solutions. By W.N. Harrtry, F.R.S., : 
(.—Award of the Boyle Medal to Professor Thomas Preston, 
 M.A., D.Sc., F.R.S., 1899, 
: . DUBLIN: 
PI BLISHED BY THE ROYAL DUBLIN SOCIETY. 
4 WILLIAMS AND NORGATE, 
‘HENRIETTA- STREET, COVENT GARDEN, LONDON; 
ay SOUTH FREDERICK- STREET, EDINBURGH; 
anv 7, BROAD-STREET, OXFORD. 
1901. 
Price Fie Shillings and Sixpence. 
of Minerals in Igneous Rocks. By J. A. CunniNeuam, 
SEPTEMBER, 1901. ane 
PAGE 
of Irish Rocks for Gold and Silver. By E. Sr. Jonn — 
422 
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475 
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508° 
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ith alode aie responsib/e for all Opinions expressed in their Communications. 
