214 
‘Plover’s’ winter-quarters at, in the 
years 1852-54, 37. 
Poisons, on the action of some animal, 
110. 
Polarization, on a method of determining 
whether the luminiferous vibrations are 
parallel or perpendicular to the plane 
of, 9 
Polarizer, new, 5. 
Population, on the ages of the, in Liver- 
pool and Manchester, 158; on the de- 
pendence of moral and criminal on 
physical conditions of, ib. 
Porter (Henry John) on the census of 
Sydney, New South Wales, 167; cen- 
sus of the province of Canterbury, New 
Zealand, ib. 
Potassium, on explosive, 47. 
Potato, on the nutritive properties of the, 
57. 
Poznanski(Dr.) on theconnexion between 
atmospheric vicissitudes and epidemic 
diseases, 115. 
Prism, on a new polarizer, resulting from 
a modification of the, of Nicol, 5; on 
the use of the, in detecting impurities, 
48. 
Prison, on the effect of good and bad 
times on committals to, 158. 
Professional incomes, on, 163. 
Pugh (Mr.) on the assimilation of nitro- 
gen by plants, 51. 
Putrid Sea, on the, 148. 
Quito, ethnological and antiquarian re- 
searches in, 121. 
Raillard (M. l’Abbé), new and complete 
explanation of the rainbow, 35. 
Railway signal, on a new, 185. 
Railways, on the use of percussion lights 
for preventing collisions on, 181. 
Rain, on the variation in the quantity of, 
due to the moon’s position in reference 
to the plane of the earth’s orbit, 29. 
Rainbow, new and complete explanation 
of the, 35. 
Ralfs (J.) on the siliceous cells formed in 
the frustules of Diatomacez, J()1, 
Rankin (Rev. T.), meteorological pheno- 
mena at Huggate, Yorkshire, 37. 
Rankine (W. J. Macquorn) on the prin- 
ciple of the transformation of structures, 
189. 
Reade (Rev. J. B.) on a new method of 
forming ammonio-iodides of metals, 55. 
Redfern (Dr.) on a method of applying 
the compound microscope to the sides 
or top of aquaria less than 2 feet in 
height, 106; on Flustrella hispida, i), 
INDEX Il. 3 
Rennie (George), continuation of experi- 
ments to determine the resistances of 
“ screw-propellers when reyolying in 
water at different depths and velocities, 
189; on the quantity of heat developed 
by water when rapidly agitated, 190, 
Richardson (SirJ.) on electric fishes, 115 ; 
on James Anderson’s report of a search- 
ing party down the Great Fish River 
in quest of the remains of the crews of 
the ‘ Erebus’ and ‘Terror’ in 1855, 148. 
Riley (E.) on fused wrought iron, 57. 
Ritchie (E. S.) on a powerful induction 
apparatus devised by, 15. 
Rivers, on erosion of, in India, 89; on 
the advantages arising from the im- 
provement of tidal, 167. 
Robinson’s (Rev. T. R.) address to the 
Mathematical and Physical Section, 1 ; 
on transit observations of the moon, 27. 
Rocks, on the relations of the, of the car- 
boniferous series of Ireland, 66; onthe 
relation between the cleavage of mine- 
rals and the cleavage of, 76. 
Rogers (Jasper W.) on the nutritive pro- 
perties of the potato, when properly 
manipulated, as compared with wheat, 
&c., 57; on some of the medicinal and 
chemical properties of carbonized peat 
moss, 58. 
Rogers (Prof. H. D.) on the geological 
survey of Pennsylvania, 89. 
Rogers (Prof. W. B.) on the construction 
and effects of a very powerful induction 
apparatus devised by Mr, E.8. Ritchie, 
15; ozone observations, 58; on the 
discovery of paradoxides in New Eng- 
land, 89. 
Rosse (The Ear! of), address to the Me- 
chanical Section, 175. 
Round towers of Ireland, on the, 133, 
Rundell (W.), magnetic experiments 
made on board the ‘Great Eastern’ 
steamer, 22, 
Russell (Rev. Charles) on the inhabitants 
and dialect of the Barony of Forth in 
the county of Wexford, 149. 
Russell (John. Scott), mechanical struc- 
ture of the ‘Great Eastern’ steam- 
ship, 195. 
Sabine (Maj.-Gen.) on the amount and 
frequency of the magnetic disturbances 
and of the aurora at Point Barrow, on 
the shores of the Polar Sea, 14, 
Salmon (Rev. G.) on the surface of cen- 
tres of an ellipsoid, 4. 
Salter (J. W.) on the fossils from Dur- 
ness, 83; on the fossils of the Dingle 
district, 89. 
i i i ee 
