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TRANSACTIONS (SERIES Il.). 
Vor. I.—Parts 1-25.—November, 1877, to September, 1883. 
Vou. II.—Parts 1-2.—August, 1879, to April, 1882. 
Vou. III.—Parts 1-14.—September, 1883, to November, 1887. 
Vor. IV.—Parts 1-14.—April, 1888, to November, 1892. 
Vou. V.—Parts 1-13.—May, 1893, to July, 1896. 
VOLUME VI. 
On Pithecanthropus erectus: A Transitional Form between Man and the Apes. By Dr. 
Evucine Dusois. (February, 1896.) Is. 
On the Development of the Branches of the Fifth Cranial Nerve in Man. By A. Francis 
Drxon, B.A., M.B., Chief Demonstrator of Anatomy, Trinity College, Dublin. Plates 
I. and II. (May, 1896.) 3s. 
. The Rhyolites of the County of Antrim; With a Note on Bauxite. By Grenvittz A. J. 
CoL®, M.R.1.A., F.G.S., Professor of Geology in the Royal College of Science for Ireland. 
Plates III. and TV. (May, 1896.) 2s. 
. On the Continuity of Isothermal Transformation from the Liquid to the Gaseous State. 
By Tuomas Preston, M.A., F.R.U.I. (June, 1896.) 1s. 
. On a Method of Photography in Natural Colours. By J. Jory, M.a., sc.D., F.R.S. Plates 
V.and VI. (October, 1896.) 1s. 
. On some Actinaria from Australia and other Districts. By A. C. Happon, m.a. (Cantab.), 
M.R.1.A., Professor of Zoology, Royal College of Science, Dublin; and J. E. Durrpen, 
assoc. R.c.sc. (Lond.), Jamaica Institute, Kingston, Jamaica. Plates VII. to X. (Octo- 
ber, 1896). 2s. 
. On Carboniferous Ostracoda from Ireland. By T. Rupserr Jonus, F.R.s., and James W. 
Kirxsy. Plates XI. and XII. (December, 1896.) 2s. 
. On Fresnel’s Wave Surface and Surfaces related thereto. By Witi1am Boots, m.a., 
Principal of the Hoogly College, Bengal ; Officiating Director of Public Instruction, 
Assam. (July, 1897.) Is. 
. On the Geology of Slieve Gallion, in the County of Londonderry. By Grenvittz A. J. 
CoLE, M.R.1.A., F.G.8., Professor of Geology in the Royal College of Science for Ireland. 
Plates XIII. and XIV. (July, 1897.) 2s. 
On the Origin of the Canals of Mars. By J. Jouy, M.a., B.A.1., SC.D., F.R.S., Hon. Sec. Royal 
Dublin Society. Plates XV. and XVI. (August, 1897.) Is. 
The Course and Nature of Fermentative Changes in Natural and Polluted Waters, and in 
Artificial Solutions, as Indicated by the Composition of the Dissolved Gases. (Part IV.) 
Humus; its Formation and Influence in Nitrification. By W. EH. Aprnry, assoc. 
R.C.SC.I., F.1.c., Curator in the Royal University, Dublin. (August, 1897.) 1s. 
On the Volume Change of Rocks and Minerals attending Fusion. By J. Joy, M.a., B.A.1., 
sc.D., F-R.s., Hon. Sec. Royal Dublin Society. Plates XVII. and XVIII. (October, 
1897.) 1s. 
Of Atmospheres upon Planets and Satellites. By G. Jounstone SToney, M.A., D.SC., F.R.S., 
F.R.A.S., Vice-President of the Physical Society, &e. (November, 1897.) 1s. 
