208 
Forth, on the inhabitants and dialect of 
the Barony of, 149. 
Fortresses, on the remains of early stone- 
built, in the county of Kerry, 148. 
Fossils, on carboniferous limestone, from 
the county of Limerick, 62; from the 
Barbary coast, 67 ; from Durness, 83 ; 
of the Dingledistricts, 89; of the Severn 
drift, 93. 
Foster (G. C.) on a more systematic no- 
menclature for organic bodies, 45. 
Foucault (M. Léon) on a new polarizer, 
resulting from a modification of the 
prism of Nicol, 5; on a telescope spe- 
culum of silvered glass, 6. 
Free-trade, on the progress of, on the 
continent, 163, 164. 
Frith (G. H.) on macadamized roads, 
180. 
Froth, on, 48. 
Fruit-bearing tree, on the remarkable re- 
sult of an experiment upon a, 100. 
Fulbrook (C.) on the variation in the 
quantity of rain due to the moon’s 
position in reference to the plane of 
the earth’s orbit, 29. 
Fusus antiquus, on a curious monstro- 
sity of form in the, 104. 
Gages (Alphonse) on some arseniates of 
ammonia, 47; on the specific gravity 
of chloride of nitrogen, with some 
remarks upon its action on alcohol, 
ib. 
Gairdner (Dr.) on the mortality from 
certain diseases, 110 ; on the action of 
the auriculo-ventricular valves of the 
heart, ib. 
Galathea, new species of, 104. 
Galty mountains, on the geology of the, 
93. 
Galvanic currents, on controlling the 
movements of ordinary clocks by, 13. 
Galway, on the drift of West, 64. 
Gardening, cottage, 166. 
Gaul, ancient, on an inscription in the 
language of, 154. 
Geodetics and the conjugate system, on 
a system of, 2. 
Geographical longitude, on the relative 
accuracy of the different methods of 
determining the, 25. 
Geography, 117. 
Geological epochs, on the existence of 
forces capable of changing the sea-level 
during different, 69. 
Geological map of Ireland, description 
of the one-inch, 75. 
Geological structure of the Dingle pro- 
montory, Co. Kerry, on the, 70. 
Grattan (John) on some skulls discovered 
INDEX II. 
Geological survey of India, on the di- 
stricts already visited by the, 85. 
Geology, 62; of the neighbourhood of 
Tralee, 65; of Caldbeck fells, and the 
lower sedimentary rocks of Cumber- 
land, 67 ; of Lambay islands, 75. 
Germans, on the physical character of 
the ancient and modern, 118. 
Gilbert (Dr.) on the assimilation of 
nitrogen by plants, 51. 
Gladstone (J. H.) on the colour of salts 
in solution, each constituent of which 
is coloured, 8 ; on the effects of heat — 
on the colour of dissolved salts, ib.; 
chemical notes, 48 ; on the use of the 
prism in detecting impurities, 7b. ; on 
the decomposition by heat of certain 
ammoniacal salts, 23. 
Glass, on a telescope speculum of sil- 
vered, 6. 
Globe, outline of a theory of the struc- 
ture and magnetic phenomena of the, 
22. 
Glycerine, on preserving the vaccine virus 
in, Lib: 
Godwin-Austen (Robert) on the occur- 
rence of a boulder of granite in the 
white chalk of the south-east of En- 
gland, 62. 
Gold, ammonio-iodide of, 55; on some 
of the principal effects of the new, as 
an instrument of purchase, on the pro- 
duction and distribution of real wealth, 
156; on the effects of the, of Australia 
and California, 160; on some of the 
economical questions connected with 
the effect of the new, in diminishing 
the difficulties of the last few years, 166. 
Granite, on a boulder of, in the white 
chalk of the south-east of England, 62; 
on the junction of the mica-slates and, 
of Killiney Hill, Dublin, 84. 
in an ancient sepulchral mound near 
Mount Wilson in King’s County, Ire- 
land, 131. 
Graves (Rev. Prof.) on the interpretation 
of certain symbolic formule and ex- 
tensions of Taylor’s theorem, 3; on 
the progress already made in the trans- 
cription and translation of the ancient 
laws of Ireland, called the Brehon laws, 
131; on the identification of the river 
Dur of Ptolemy with the Kenmare 
river, 132. 
Gray (Dr.) on a new railway signal, 185. 
‘ Great Eastern’ steamer, magnetic ex- 
periments made on board the, 22; 
mechanical structure of the, 195. 
Greene (Joseph R.) on British naked- 
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