eyed Meduse, with notices of seven 
undescribed forms, 103. 
Greenisland, on converging rays seen at, 
35. 
Griffith (Sir Richard, Bart.) on the re- 
lations of the rocks at or below the 
base of the carboniferous series of Ire- 
land, 66. 
Grove’s battery, description of an ar- 
rangement of, 20. 
Grubb (Thomas) on improvements in the 
optical details of reflecting telescopes 
and equatoreal instruments, 8. 
- Gulf-stream, influence of the, on the cli- 
mate of Ireland, 132. 
y Virginis for the epoch 1857, on the re- 
sults of measurements of, 32. 
i nel 
Habershon (G. F.), notes from the Bar- 
bary coast, with fossils, 67. 
Hamilton (Archibald H.) on electric cur- 
rents in the earth’s surface, 48. 
_ Hamilton (Sir W. R.) on the icosian 
calculus, 3. 
Hand, the human, an index of mental 
_ development, 118. 
Hardy (Dr.) on his instrument for the 
local application of chloroform, 115. 
Hargrave (Mr. Commissioner) on infinite 
angles, and on the principle of mean 
values, 3. 
Harkness (Professor) on the geology of 
Caldbeck fells, and the lower sedi- 
mentary rocks of Cumberland, 67 ; on 
the records of a triassic shore, 68 ; on 
the jointing and dolomitization of the 
lower carboniferous limestone in the 
neighbourhood of Cork, ib. 
Hart (A. 8.) on the effect of the resist- 
ance of water to an extended cable, 180. 
Hartnup (John) on controlling the move- 
ments of ordinary clocks by galvanic 
currents, 13. 
Haughton (Dr. Edward) on the Oriental 
bath, 110. 
Haughton (James) on the necessity of 
prompt measures for the suppression 
of intemperance and drunkenness, 
161. 
‘Haughton (Rev. Prof.) on a model illus- 
_ trative of slaty cleavage, 69; on fossil 
stems allied to Stigmaria, recently ob- 
Oy 
red sandstone of Hook Point, Co. 
__ Wexford; 7b. 
Hayden (Dr.) on the physiological rela- 
_ tions of albumen, 110. 
ayes (Dr. A. A.) on some modified re- 
sults attending the decomposition of 
_ bituminous coals by heat, 50. 
INDEX II. 
_ tained.from the upper beds of the old | 
209 
Hayes (J. J.) on the mode of rendering 
peat economically available as a fuel, 
and as a source of illuminating gas, 
181. 
Heart, on the action of the auriculo-ven- 
tricular valves of the, 110. 
Heat, on the distribution of, over the sur- 
face of the British Isles, 30; on the 
conductivity of various substances for, 
70; onthe quantity of, developed by 
water when rapidly agitated, 190. 
Hennessy (Professor) on the direction of 
gravity at the earth’s surface, 24 ; on 
the solidification of fluids by pressure, 
25; on simultaneous isothermal lines, 
29; on the vertical currents of the 
atmosphere, 30; on the distribution of 
heat over the surface of the British 
Isles, ib.; on the existence of forces 
capable of changing the sea-level during 
different geological epochs, 69; onthe 
influence of the Gulf-stream on the 
climate of Ireland, 132. 
Hennessy (John Pope) on the origin and 
elimination of Euclid’s “‘ Reductio ad 
absurdum,” 3; .on certain pathological 
characters of the blood-corpuscles,113; 
on agricultural and manufacturing in- 
dustry, 162. 
Herefordshire, new species of Eurypterus 
from the old red sandstone of, 93. 
Heurteloup (M. le Baron) on a new 
method of administering chloroform, 
ols 
Hills (Gordon M.) on the round towers 
of Ireland, 133. 
Himalayas, on the routes pursued by the 
Messrs. Schlagintweit in the, 149. 
Hincks (Rev. E.) on the relation between 
the newly-discovered Accadian lan- 
guage and the Indo-European, Semitic 
and Egyptian languages, 134. 
Hippocrates, on the macrocephali of, 146, 
Hodgkin (Dr.) on the proposed ship-canal 
through the Isthmus of Suez, 199. 
Hogg (John) on some variations of 
British plants, 96; on the supposed 
biblical names of Baalbec, and on the 
position of Baalgad, 143. 
Hopkins (William) on the conductivity of 
various substances for heat, 70; on 
the cause of the mild winter tempera- 
ture of the British islands, 144. 
Huggate, meteorological phenomena at, 
37. 
Hughes (W.) on the application of a deci- 
mal scale to the construction of maps, 
145. : 
Human race, on the probable migrations 
and yariations of the earlier families of 
14 
