TRANSACTIONS (NEW SERIES). 
VOLUME J. 
(Already Published.) 
PART. 
5.—On the Mechanical Theory of Crookes’s Force. By GmrorGE FRANCIS FITZGERALD, ™.A., 
F.1.C.D. (October, 1878.) 
6.—Notes on the Physical Appearance of the Planet Mars, as seen with the Three-foot Reflector at 
Parsonstown, during the Opposition of 1877. By Joun L. E. Dreyer, M.A. Plates I. and 
II. (November, 1878.) 
7.—On the Nature and Origin of the Beds of Chert in the Upper Carboniferous Limestone of Ireland. 
By Professor: EDWARD HULL, M.A., F.R.S., Director of the Geological Survey of Ireland. And 
On the Chemical Composition of Chert and the Chemistry of the Process by which it is 
formed. By Epwarp T. HARDMAN, F.c.s. Plate III. (November, 1878.) 
8.—On the Superficial Tension of Fluids and its Possible Relation to Muscular Contractions. 
By G. F. FirzGERALD, M.A., F.1.0.D. (December, 1878.) 
.— Places of One Thousand Stars observed at the Armagh Observatory. By Rev. THomas RoMNEY 
ROBINSON, D.D., LL.D., D.C.L., F.R.S., &C. (February, 1879.) 
10.—On the Possibility of Originating Wave Disturbances in the Ether by Means of Electric Forces. 
By Geo. FRAS. FITZGERALD, M.A., F.7.C.D. Part 1. (February, 1880.) 
11.—On the Relations of the Carboniferous, Devonian, and Upper Silurian Rocks of the South of 
Treland to those of North Devon. By Epwarp HULL, M.A., LL.D., F.RS., Director of the 
Geological Survey of Ireland, and Professor of Geology, Royal College of Science, Dublin. 
Plates [V. and V., and Woodcuts. (May, 1880.) 
12.—Physical Observations of Mars, 1879-80. By C. E. BURTON, B.A. MBIA, ERAS. Plates VI, 
VII, and VIII. (May, 1880.) as 
13.-—On the Possibility of originating Wave Disturbances in the Ether by means of Electric Forces. 
Part 2. By Gro. FRANCIS FITZGERALD, M.A., F.T.C.D. (November, 1880.) 
14.—Explorations in the Bone Cave of Ballynamintra, near Cappagh, County Waterford. By A. 
_ Lerra ADAMS, M.B., LL.D., F.R.S., F.G.S. G.H. KINAHAN,M.R.LA. and R. J. UssHEeR. Plates IX. 
to XIV. (April, 1881.) 
15.—Notes on the. Physical Appearance of the Planet Jupiter during the Season 1880-1. By The 
EARL OF Rosse and Dr. Orro BorppickER—Plate XV. (January, 1882.) 
16.—Photographs of the Spark Spectra of Twenty-one Elementary Substances. By W. A. 
HARTLEY, F.R.S.E., Professor of Chemistry, Royal College of Science, Dublin. Plates XVL, 
XVII. and XVIII. (february, 1882.) 
17.—Notes on the Physical Appearance of the Comets } and ¢, 1881, as observed at Birr Castle, 
Parsonstown, Ireland. By The EARL or Rosse and Orro BoEDDICKER, PH.D. Plate XIX. 
(In the Press.) 
18.—On the Laurentian Rocks of Donegal, and of other parts of Ireland. By Epwarp HULL, 
LL.D., F.R.S., &c., Director of the Geological Survey of Ireland. Plates XX. and XXI. 
VOLUME II. 
1.—Observations of Nebulee and Clusters of Stars, made with the Six-foot and Three-foot Reflectors 
at Birr Castle, from the year 1848 up to the year 1878. Nos. 1&2. By the Ricut Hon. 
THE HARL OF ROSSE, LL.D., D.C.L., F.R.S. Plates I. to TV. ee 1879.) No. 3. Plates V. 
and VI. (June, 1880.) 
2.—On Aquatic Carnivorous Coleoptera or Dytiscide. By Dr. SuHarp. Plates VII. to XVI. (In 
the Press.) 
