iv List of the Contributors. 
Barrett, W. F., F.R.S.E. 
On an experiment connecting Electro-Motive Force and 
Surface Tension (with Woodcuts), 
Notes from the Physical Laboratory of the Royal College 
of Science for Ireland (with Woodeut), 
On the Suppression of Induction Clamour in Telephones 
(with Woodcut), 
Barrineton, R. M., M.A., LL.B. 
On the Introduction of the Squirrel into Ireland (with 
a Map), 
Cameron, C. A., M.D., F.R.C.S.1. 
On the Abnormal Composition of a Crop of Hay, 
Preliminary Note on the Absorption of Selenium by Plants, 
On the Action of Water upon Mercuric Sulphate, . 
CrosE, Rev. Maxwe.t, M.A. 
Anniversary Address to the Royal Geological Society of 
Treland (1878), . 
Anniversary Address to the Royal Geological Society of 
Treland (1879), . 
Dreyer, J. L. E., M.A. 
A Record of the Progress of Astronomy during the year 
1879, 
Fieitpen, H. W., F.G.8. 
Some remarks on Inter-Glacial Epochs in reference to 
Fauna and Flora, existing at the present day in the 
Northern Hemisphere, between the parallels of 81° and 
83° .N., 
FirzGErALp, Grorce F., M.A., F.T.C.D. 
On M. Duter’s Experiments on Electric Accumulators, 
On the Maximum Tension of Vapours near Curved 
Liquid Surfaces, 
Note on the Conductivity of Tourmaline Crystals, . 
Note on the Construction of Guard-ring Electrometers, 
Notes on Fluorescence, . 
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437 
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