188 
INDEX II. 
58; on the means of realizing the ad¬ 
vantages of the air-engine, 159. 
Ratlibone (Theodore W.) on the different 
plans which have been proposed of de¬ 
cimal accounts and coinage, 143. 
Reade (Rev. J. B.) on photographs of 
the moon and of the sun, 10. 
Rcbmann (the Rev. J.), letter from, to 
the Rev, H. Venn, from Kisnludini 
(in Rabbai), 123. 
Redfern (l)r.) on the nature of the Tor- 
banehill and other varieties of coal, 
102 . 
Refractometer, on a portable, 2. 
ltcid (Dr.) on the plan of ventilating St. 
George's Hall, 159. 
Rennie (George),hydrographical remurks 
on the improvement of the port of 
Liverpool, 124. 
Richardson (J.) on the medicinal leech, 
113. 
Rocks, on the foliation of sonic meta- 
morphic, in Scotland, 82; on the dis¬ 
covery of microscopic shells in the lower 
Silurian, il >.; on the pulivozoic, of 
Germany, 87 j on the subdivisions uf 
the palaeozoic, of Scotland, 91 ; on the 
structure and texture of stratified, 92 ; 
on the supply of gold from English, 
133 ; on a method of boring holes in, 
for tunneling purposes, 157. 
Rope, on the origin of wire, 162. 
Ross (Sir John) on the deviation of tho 
magnetic needle peculiar to Liverpool, 
12 ; on errors which may he occasioned 
by disregarding the influence of solar 
or artificial light in magnets, ib. 
Rubiacca*, on the stipulftr glands of, 99. 
Russell (John Scott) on the progress of 
naval architecture and steam naviga¬ 
tion, including a notice of the large 
ship of the Eastern Steam Navigation 
Company, 100. 
Russell (W.), letter to J. (.’leghorn on the 
herring fisheries of Wick district, 176. 
Russia in Europe, on the non-Russian 
populations of, 129, 139. 
Sailing, on modifications of grcat-circlc, 
126. 
Salts, on the fluorescence exhibited by cer¬ 
tain iron nnd platinum, G8. 
Sandstone, on a slab of old red, from 
Puddlestonc, near Leominster, 91 ; on 
specimens of old red, from (jallows 
Hill, near Thurso, 92; on fossil re¬ 
mains of fishes from the old red, „f 
Herefordshire, 95; on the May Hill 
ib .; on V. a mites gigua from the, and 
shale of the Yorkshire coust, 103. 
Saxby (Mr.) on mechanical appliances 
on board merchant ships, 161. 
Scoresby (Rev. W.) on pictorial and pho- 
tochromatic impressions on the retina 
of the human eye, 12; on the loss of 
the “ Tayleur,” und the changes in the 
action of compasses in iron ships, 49; 
an inquiry into the principles and mea¬ 
sures on which safety in the navigation 
of iron ships may be reasonably looked 
for, 53, 161. 
Scotland, on the great terrace of erosion 
in, 78; further observations on glacial 
phumomenn in, nnd the north of Eng¬ 
land, 79; on the foliation of some 
mctamorphic rocks in, 82; on the an¬ 
thracite deposits and vegetable re¬ 
mains in the lower Silurians of the 
south of, 80; on the subdivisions of tho 
pnlxozoic rocks of, 91. 
Screw propoller, on Fisher’s Venetian, 
151. 
Sea animals, on living, 113. 
Sea-water, on the artificial preparation of, 
for marine vivaria, 77; on the influ¬ 
ence of coloured glass on the growth 
of plants in, 103. 
Sedgwick (Rev. Prof.) on the May Hm 
sandstone, nnd the palmozoic system of 
Englund, 05. 
Sekeletu, letter from the Rev. Dr. Li¬ 
vingston from, 121. 
Sewell (John) on steam-boiler explosions, 
162. 
Sewerage of manufacturing towns, on the, 
77. 
Seymour (D.) on the Caucasus and parts 
of the Crimea, 124 ; on the MS. notes 
of travels of General Fevrier in central 
Asia, 125. 
Shells, land, freshwater and marine, ob¬ 
tained in sinking a well on the bonks 
of the Avon, 78 ; on the discovery °f 
microscopic, in the lower Silurian 
rocks, 82 ; on four hundred and forty 
species of, from Mazatlan, 107. 
Ship’s compass, on a graphic method of 
correcting the deviations of a, 13. 
Ships, on the changes in the action ot 
compasses in iron, 49; on the prim 
ciples und measures on which safety 
in the navigation of iron, may be rea¬ 
sonably looked for, 53, 1.61; on t' 1 ® 
inefficiency of the aids of science a 
present in connexion with the com¬ 
passes of iron, 55 ; on ventilation of, 
148; on clipper, 152; on destroying! 
by means of a marine mortar, 158; on 
mechanical appliances on board mer¬ 
chant, 161 . 
