PUBLICATIONS OF THE ROYAL DUBLIN SOCIETY. 
TRANSACTIONS: Quarto, in parts, stitched. 
Vol. I. (new series). (Recently published.) 
Part 6.—Notés on the Physical Appearance of the Planet Mars. 
By J. L. E. Dreyer, M.A. With Plates 1 and 2, (October, 1878.) 
Part 7.—Section 1.—On the Nature and Origin of the Beds of 
Chert in the Upper Carboniferous Limestone of Ireland. By 
E. Hunt, M.A., F.R.S. Section II.—On the Chemical Composition 
of Chert, and on the Chemistry of the Process by which it is formed. 
By E. Harpmay, F.C.S. With Plate 3. (November, 1878). 
Part 8.—On a Superficial Tension of Fluids and its Possible Re- 
lation to Muscular Contractions. By G. F. Firzcerarp, M.A., 
F.T.C.D. (December, 1878.) 
Part 9.—Places of One Thousand Stars observed ‘at the Armagh 
Observatory. By the Rev. Dr. Romney Rosinson. (February, 1879.) 
Part 10.—On the Possibility of Originating Wave Disturbances in 
the Ether by means of Electric Forces. By G. F.. FrrzcEraxp, M.A., 
F.T.C.D. (February, 1880.) an 
Part 11.—On the Relations of the Carboniferous, Devonian, and 
Upper Silurian Rocks of the South of Ireland to those of North 
Devon. By Epwarp Hutt, M.A., LL.D., F.R.8., Director of the 
Geological Survey of Ireland, and Professor of Geology, Royal College 
of Science, Dublin. With Plates IV. and V., and Woodcuts. (May, 
1880.) . 
Part 12.—Physical Observations of Mars, 1879-80. By C. E. 
Burton, B.A., M.R.LA., F.R.A.S. With Plates VI., VIL, and 
VIII. (June, 1880.) 
Vol. IT. (new series). 
Part 1.—Observations of Nebule and Clusters of Stars made with 
the Six-foot and Three-foot Reflectors at Birr Castle, from the year 
1848 up to about the year 1878. Nos.1 and 2. By the Right Hon. 
the Earl of Rosse, D.C.L. With Plates I. to IV. (August, 1879.) 
Part 2.—Do. do. No. 3. With Plates V. and VI. (June, 
1880.) : 
PROCEEDINGS: 8vo., in parts, stitched. 
‘Vol. IT. (new series.) (Recently published.) 
Part 3.—Pages 179 to 242. (July, 1879.) 
Part 4.—Pages 243 to 288. (January, 1880.) 
Part 5.—Pages 289 to 416. (April, 1880.) 
Part 6.—Pages 417 to 550. (July, 1880.) 
