136 
Steam power, on the application of, to the 
drainage of marshes and fen lands, 117. 
Steel, on the chemical character of, 57. 
Stephenson’s tubular bridges at Conway and 
Menai Straits, investigations undertaken 
for the purpose of furnishing data for the 
construction of, 119. 
Stokes (G. G.) on the refraction of light be- 
yond the critical angle, 5. 
on a difficulty in the theory of light, 5. 
on the resistance of the air to pendu- 
lums, 7. 
on the perfect blackness of the centre of 
Newton’s rings, 7. 
Storm, on a remarkable, at Bombay, on April 6, 
1848, 41. 
Strickland (H. E.) on anastatic printing and 
its various combinations, 120. 
Struvé (William Price) on the great anticlinal 
line of the mineral basin of South Wales, 75. 
on the ventilation of collieries, with de- 
scription of a new mine-yentilator, 120. 
on a new low-pressure atmospheric 
railway, 120. 
Sun, on improvements in the reflecting circle, 
in reference to an instrument for measuring 
angular distances of the, 117. 
Sykes (Lt.Col.) on the fall of rain on the table- 
land of Uttree Mullay, Travancore, during 
1846, 39. 
on atmospheric disturbances, and on a 
remarkable storm at Bombay on the 6th of 
April 1841, 41. 
, remarks on the Dutch possessions in the 
East, 112. 
, Statistics of civil justice in Bengal in 
which the government is a party, 116. 
Swansea, meteorological phenomena observed 
at, 23. 
» notices of aurore observed at, 22. 
Tarentaise, on the occurrence in the, of certain 
species of fossil plants of the carboniferous 
period, associated in the same bed with 
belemnites, 64. 
Tawey, on remains discovered beneath the 
bed of the river, 62. 
» on some bones found in the bed of the, 
71. 
Taylor (T. L.) on the sounds emitted by mol- 
lusca, at Bathcoloa, Ceylon, 82. 
Telegraph, on rendering the electric, subser- 
vient to meteorological research, 12. 
, speaking, on the, 125. 
Telegraphs, on the “ uniformity of time” and 
other, 123. 
Telegraphic and other purposes, on the sub- 
aqueous rope for, 123. 
Telekouphonon, on the, 125. 
Yennant (J.) on pseudomorphous crystals 
from volcanic districts of India, 61. 
Thermometer, on a self-registering, 14. 
, comparative temperature table, showing 
the daily average height of the, at Jersey, 
Torquay, Hastings and London, in July 
1848, 16. 
INDEX II. 
Thompson (William) on additions to the fauna 
of Ireland, 125. 
Thomson (Prof. W.) on the equilibrium of 
magnetic or diamagnetic bodies of any form, 
under the influence of the terrestrial mag- 
netic force, 9. 
-— on the theory of electro-magnetic induc- 
tion, 9. 
“Threads”? in annular eclipses, on an ex- 
planation of the, 2. 
Thwaites (G. H. K.) on an apparently unde- 
scribed state of the Palmellez, with a few 
observations on gemmation in the lower 
tribes of plants, 87. 
Tide, on a remarkable, at Lyme Regis, on 
July 7, 1848, 37. 
Tongue, on the structure of the nerves in the 
glands at the inferior surface of the, 83. 
Troops in India, on the means of maintaining 
the health of, 101. y 
Tumali Janguage, on the, 100. 
Tungsten, on some of the alloys of, 57. 
Tutschek (Dr. L.) on the Tumali language, 
100. 
— on the Fazoglo language, 100. 
Tympanum and palate in the crocodiles, on 
the communications between the, 79. 
“ Uniformity of time” and other telegraphs, 
on the, 123. 
Uttree Mullay, Travancore, on the fall of rain 
on the table-land of, in 1846, 39. 
Vegetable monstrosities illustrating the laws 
of morphology, 85. 
Velocentimeter, on the improved, 124. 
Ventilation of collieries, on the, 120. 
Vertebrz, on the erroneous division of the 
. cervical and dorsal, and the connexion of 
the first rib with the seventh vertebra, 89. 
Villermé (M.) on cultivation in Brittany, 114. 
Vision of distance as given by colour, on the, 
48. 
Vision, on impaired, in which objects appear 
much smaller than natural, 8. 
Volcanic districts of India, on pseudomor- 
phous crystals from, 61. 
Volcanos, chemical theory of, reply to an ob- 
jection of Mr. Hopkins to the, by Dr. Dau- 
beny, 67. 
Voltaic combinations, on the electromotive 
force, dynamic effect and resistance of va- 
rious, 62. 
Voltaic ignition, on the peculiar cooling effects 
of hydrogen and its compounds in cases of, 
Waller (Dr.) on impaired vision in which ob- 
jects appear much smaller than natural, 82. 
on the luminous spectra excited by 
pressure on the retina and their application 
to the diagnosis of the affections of the re~ 
tina and its appendages, 82. 
microscopic observations on the move- 
ment of the human blood in the capillaries, 
and on the structure of the nerves in the 
