TRANSACTIONS (NEW SERIES) VOLUME I. 
(Already Published.) 
PART. 
1.—On Great Telescopes of the Future. By Howarp Gruss, F.R.AS. (November, 1877.) 
2.—On the Penetration of Heat across Layers of Gas. By G. J. Stony, M.A., F.R.S. (November, 
TEVA) 
3.—On the Satellites of Mars. By WrntwortH Ercx, LL.D. (May, 1878.) 
4.—On the Mechanical Theory of Crookes’s, or Polarization Stress in Gases. By G., J. Sronzy, 
M.A., F.R.S. (October, 1878.) 
5.—On the Mechanical Theory of Crookes’s Force. By Grorce Francis Firzceratp, 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 Joun 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 EpwARD 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. HarpMAN, F.c.s, With Plate III, (November, 1878.) 
