200 
vantageous use made of the gaseous 
escape from the, 172. 
Gairdner (Dr. W. T.) on pathological 
cell-development, 131. 
Gairloch, on the system of Croft husban- 
dry and the reclamation of waste lands, 
chiefly by spade culture, adopted at, 
147. 
Galvanic arrangements, table of the rela- 
tive and absolute powers of, 185. 
Galvanometry, on a fixed scale for elec- 
tromotive force in, 185. 
Ganoids, on certain extraordinary pecu- 
liarities of structure in the moreancient, 
91. 
Gas stove, on ἃ, 191. 
Gaseous escape, advantageous use made 
of the, from the blast furnaces at Ysta- 
lyfera, 172. 
Gases, on the influence of sunlight over 
the action of the dry, onorganic colours, 
Gassiot (J. P.) on a peculiar form pro- 
duced in a diamond when under the 
influence of the voltaic arc, 53. 
Gastaldi (B.), parallel between the super- 
ficial deposits of the basin of Switzer- 
land and those of the valley of the Po 
in Piedmont, 90. 
Geography, physical, 69. 
Geology, 69; of the southern extremity 
of Cantyre, Argyleshire, 100. 
Germanic population, on the original dis- 
tribution of the, 141. 
Glacial phenomena of the neighbourhood 
of Edinburgh, on the, 78. 
Glaciers, on traces of ancient, in Glen- 
™Messan, 90. 
Gladstone (Dr. J. H. and Mr. G.) on the 
growth of plants in abnormal atmo- 
spheres, 54. 
Glasgow, on the progress of, in popu- 
lation, wealth, manufactures, &c., 
162. 
Glass, on electrical figures of dust on 
plate, 7. . 
GJenmessan, on traces of ancient glaciers 
in, 90. 
Globe, on the central heat and density of 
the, 88. 
Gold mines of the isthmus of Darien, on 
the, 79. 
Granitic blocks, on the dispersion of, 
from Ben Cruachan, 88. 
Grantham, on the great oolite, inferior 
oolite and lias, in the neighbourhood 
of, 74. 5 
Graphite, on the recent discovery of, in 
the island of Mull, 102. 
INDEX II. 
Grasses, on an Acarus and a Vibrio that 
attack, 124. 
Gregory (Dr.) on the sulphite of lead, 55. 
Gum-dragon tree, on the treatment and 
flowering of a plant of, 114. 
Guyot (Dr. Jules) on the priority of the 
invention of the tubular bridge, 170. 
Haidinger’s brushes, on, 20. 
Hail-storms, on Indian, 43. 
Hamilton (Dr. Mathie) on earthquakes 
in S. America in 1844-47, 82. 
Hamilton (Sir W. R.) on polyzones in- 
scribed on a surface of the second order, 
2. 1 
Hancock (Albany) on*the anatomy of 
Doris, 124. 
Hancock (Prof.), statistics respecting the 
sale of encumbered estates in Ireland, 
148; on the causes of distress at Skull 
and Skibbereen during the famine in 
Ireland, 149; on the cost of obtaining 
patents in different countries, ib. 
Hardy (James) on an Acarus and a Vibrio 
that attack grasses, 124. 
Harkness (Robert) on the position of the 
footsteps in the Bunter sandstone of 
Dumfries-shire, 83; on the represen- 
tatives of the mountain limestone as 
they occur in Dumfries-shire, 84. 
Hay (Dr. R.) on the geometrical basis of 
beauty in general, and more particu- 
larly as applied to architecture and the 
human form, 131. 
Heat, 3; on the expansion of solids by, 
16; on the application of electricity 
and, as moving powers, 183. 
Height, on the effect of, on the diurnal 
variation of the horizontal complement 
of the magnetic force, 7 ; on the effect 
of, in the atmosphere, on the diurnal 
variation of magnetic declination, δ. ; 
on the means of computing the quan- 
tities of aqueous vapour in the atmo- 
sphere at various places and heights,36. 
Hennessy (Henry) on the distribution of 
shooting stars, in the interplanetary 
spaces, 24. 
Hincks (Rev. Dr. E.) on the language 
and mode of writing of the ancient As- 
syrians, 140. 
Hippuris, on the epidermal appendages 
of the genus, 113. 
Hitchcock (Rev. Edward) on the erosions 
of the earth’s surface, especially by 
rivers, 85; on terraces and ancient sea- 
beaches, especially those on the Con- . 
necticut river, and its tributaries in 
New England, 87. 
Hoeven (Prof. Van der) on the genus Pe- 
