Inst of the Contributors. 
Frazer, W., F.R.C.S.L. 
On Hy Brasil, a Traditional Island off the West Coast of 
Ireland, Plotted ina MS. Map, written by Sieur Tassin, 
Geographer Royal to Louis XIII. (with Plate 9), 
Freker, Percy Evans. 
A Comparative Catalogue of Birds found in Europe and 
Vv 
PAGE 
173 
North America, , : 4 f : Rey eu ap! 
Gruss, Howarp, M.E., F.R.A.S. 
On anew form of Electrical Contact-maker for Astronomical 
and other Clocks (with a Woodcut), 
Improvements in the Stereoscope (with Plates 10 and 11), 
On the Equatorial Telescope, and on the New Observatory 
of the Queen’s College, Cork (with Plates 24 and 25, 
and Woodcuts), 
Havuenton, Rev. 8., M.D., F.T.C.D., F.R.S. 
On the Total Annual Heat received at each point of the 
Earth’s Surface from the Sun, and on the amount of the 
Loss of that Heat caused by Radiation into Space, 
neglecting the effect of the Atmosphere, 
Geological Notes on the Structure of Middle and North 
Devonshire, made during a Walking Tour in Devonshire 
in the Summer of 1878, 
Notes on the Annual Water-Discharge of Large Rivers ; 
with Indications of Some New Methods of Calculation, 
On Rossetti’s Law of Cooling, applied to the consideration 
of the relative effects of Sun-heat, Karth-heat, Star-heat, 
and Atmospheric Conditions upon Climates during 
Geological Time, 
Huu, Epwarp, M.A., F.R.S. 
On the Occurrence of Crystals of Salt (Chloride of Sodium) 
in Chert from the Carboniferous Limestone, 
Note on a new Geological Map of Ireland, 
AT 
129 
133 
