INDEX II. 
rodicticus of Bennett, and its relation 
to Stenops, 125. 
Hogg (John) on the Sicilian and Sardi- 
nian languages, 140. 
Hopkins (Thomas) on the causes of the 
rise of the isothermal lines (as repre- 
sented on Prof. Dove’s maps) in the 
winters of the northern hemisphere, 
34; on the daily formation of clouds 
at Makerstoun, 36. 
Hopkins (William) on the dispersion of 
granite blocks from Ben Cruachan, 88. 
Houses, on a register hygrometer for re- 
gulating the atmospheric moisture of, 
170. 
Huggate, on meteorological phenomena 
at, 42. 
Human form, on the geometrical basis of 
beauty in general, as applied to, 131. 
Hydrophobia, observations on, 129. 
Hygrometer for regulating the atmosphe- 
ric moisture of houses, on a register, 
170. 
Hysteria, observations on, 129. 
Idiocy, infantile, on the expediency of as- 
certaining the extent to which it pre- 
vails in the United Kingdom, 128. 
Iguanodon, on the upper jaw of the, 125. 
India, on the grass cloth of, 112; onthe 
hedge plants of, and the conditions 
which adapt them for special purposes 
and particular localities, 113. 
Indian hail-storms, on, 43. 
Indian armies, on the prevalence and mor- 
tality of cholera in the, 161. 
Indices, refractive, of several substances, 
14, 
Instinct, on the influences of man’s, on 
his intellectual and moral powers, 130. 
Iodine, on a compound of, 48. 
Ireland, statistics respecting sale of en- 
cumbered estates in, 148; on the causes 
of distress at Skull and Skibbereen 
during the famine in, 149. 
Tron, on a new and ready process for the 
quantitative determination of, 58; on 
the hyperbolic law of elasticity of cast, 
172. 
Iron tubular crane, on a wrought, 177. 
Isoclinal magnetic lines in Yorkshire, on, 
14. 
Isothermal lines, on the causes of the 
rises of the, in the winters of the 
northern hemisphere, 34. 
Jacob (W. 5.) on a folding dome for ob- 
servatories, 180. 
Johnston (A. Keith) on the geographical 
distribution of disease, as indicating the 
201 
connexion between natural phenomena 
and health and longevity, 150. 
Joule (J. P.) on some amalgams, 55. 
Lactation, on the use of the Bofareira as 
a means adopted by the natives of the 
Cape de Verd Islands to excite, 132. 
Lanarkshire, on the Lesmahagow and 
Douglas coal-field in, 77. 
Languages, on the Sicilian and Sardinian, 
140; of the ancient Assyrians, 16. 
Lankester (Dr. Edwin) on the epidermal 
appendages of the genera Callitriche, 
Hippuris, Pinguicula, and Drosera, 113. 
Lassell (William) on a method of sup- 
porting a large speculum, free from 
sensible flexure, in all positions, 180. 
Latham (Dr. R. G.) on the original dis- 
tribution of the Germanic, Lithuanic 
and Slavonic populations, 141. 
Lead, on the sulphite of, 55; acetate of, 
on the employment of, as a purifying 
agent, on the sugar from the south of 
Spain, 60. 
Lee (Dr. John) on meteorological obser- 
vations made at Kaafjord, near Alten, 
in Western Finmark, and at Christi- 
ania in Norway, 36; on the British 
Meteorological Society, 42. 
Lens of the ox, on a new membrane in- 
vesting the crystalline, 4. 
Lias in the neighbourhood of Grantham, 
on the, 74. 
Light, 3; on a new instrument called the 
dynactinometer for measuring the in- 
tensity of the photogenic, 12. 
Lighthouse apparatus, on the limits to 
the velocity of, 191. 
Lightning, on the effects produced by, 
on a tree near Edinburgh, 13. 
Lime, on the action of the soap-test upon 
water containing a salt of magnesia 
and a salt of, 49. 
Limestone, on the representatives of the 
mountain, as they occur in Dumfries- 
shire, 84. 
Lithuanic population, on the original 
distribution of the, 141. 
Lunar surface, on the structure of the, 
and its relation to that of the earth, 
25. 
Lyon (Rev. C. F.) on some phenomena 
of mirage on the east coast of Forfar- 
shire, 42. 
Macadam (Stevenson) on the central heat 
and density of the globe, as also the 
causes of volcanic phenomena, 88. 
Mackay (J.T.) on the treatment and flow- 
ering of a plant of Draczna Draco, or 
