TRANSACTIONS (NEW SERIES). 
VOLUME IL. 
(Already Published.) 
Part. 
1.—On Great Telescopes of the Future. By Howarp Gruss F.R.A.S. (November, 1877.) 
2.—On the Penetration of Heat across Layers of Gas. By G. J. Stonry, M.A., F.R.S. (November, 
1877.) 
3.—On the Satellites of Mars. By WentwortH Ercx, LL.D. (May, 1878.) 
4.—On the Mechanical Theory of Crookes’s, or Polarization Stress in Gases. By G. J. Stonzy 
M.A., F.R.S. (October, 1878.) 
5.—On the Mechanical Theory of Crookes’s Force. By GrorcGe FRANcIS FirzGErALD, M.A., 
F.T.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 JoHn L. E. Drever,M.A. With 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.B.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. With Plate III. (November, 1878.) 
8.—On the Superficial Tension of Fluids and its Possible Relation to Muscular Contractions. 
By G. F. FIrzGERALD, M.A., £.7.c.D. (December, 1878.) 
9.—Places of One Thousand Stars observed at the Armagh Observatory. By Rrv. 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 Gro. FRAS. FITZGERALD, M.A., F.T.C.D, (February, 1880.) 
11.—On the Relations of the Carboniferous, Devonian, and Upper Silurian Rocks of the South of 
Ireland to those of North Devon. By Epwarp HULL, M.A., LL.D., F.R.S., Director of the 
Geological Survey of Ireland, and Professor of Geology, Royal Colle of Science, Dublin 
With Plates IV. and V., and Woodcuts. (May, 1880.) 
12.—Physical Observations of Mars, 1879-80. By C. E. BuRTON, B.A., M.R.LA., F.R.A.S. With Plates 
VI, VII, and VIII. (May, 1880.) 
VOLUME II. 
1.—Observations of Nebulz 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 Ricur Hon. 
THE HARL OF ROSSE, LL.D., D.C.L, F.R.S. With Plates I. to 1V. (August, 1879.) 
1— Do. Dove Do. No. 3. With Plates V. and VI. (June, 1880.) 
