a Ra ery Ss 5 GF Ft 
INDEX II. 
Calculi, description of the sound useful for 
the detection of small, 81. 
Calculus of probabilities, on some investiga- 
tions connected with the, 3. 
— of differences, on a theorem in the, 2. 
Calothrix nivea, occurrence of, at Cove, Ire- 
land, 77. 
Carbonates, alkaline, decomposition of the, 
by the light of the sun, 33. 
Carnegie (Hon. Capt.) on the late earth- 
quake at the islands of Antigua and Gua- 
daloupe, on Feb. 8, 1843, 59. 
Carpenter (Dr. W. B.) on the microscopic 
structure of shells, 71. 
Catlow (Joseph Peel) on a relation between 
the season of death and the anniversary of 
the season of birth, which varies with 
each month of birth; and on a similarly 
varying tendency to death in the anni- 
versary of the natal month, 95. 
Cerium, on lanthanium and didymium as- 
sociated with, 25. 
Chanter (John), description of a furnace for 
economizing fuel and preventing smoke, 
99. 
Chemistry, 25. 
Chromatype, a new photographic process, 34. 
Circle, on determining the index error of a, 
by reflexion of the wires of its telescope, 
16. 
Cirropteron, Sars, on the genus, 77. 
Clarke (Rev. B. J.) on the Irish species of 
the genus Limax, 73. 
Clear (W.).on insects found in the county of 
_ Cork, 76. 
Clock movement, and new mode of suspend- 
ing the pendulum, by Mr. L. Cooke, 101. 
Combination, heat of, 32. 
Combustion, spontaneous, 39. 
Concrete, formation of, 99. 
Cooper (E. J.), catalogue of mean places of 
fifty telescopic stars observed at Markrea 
Castle, 18. 
Corfu, geology of, 57. 
Cork, chemical suggestions on the agricul- 
ture of, 38. 
—,, on the minerals of, 38. 
——-, on some beds of limestone in the valley 
of, 51. 
——, on some geological phenomena in the 
vicinity of, 51. 
—, list of insects found in the county of, 
Cronin (Mr.) on the statistical results of am- 
putation, 84. 
Cuculus glandarius, 71. 
Deane (Sir T.) on the method adopted to 
raise the Innisfaile steam-vessel from the 
Cork river, 101. 
Denny (Mr.), letter from Dr. Lankester, on 
the hatching and rearing a grey parrot in 
England, 71. 
Devonian district of Ireland, on the, 46. 
Didymium, a new metal, associated with ce- 
rium, 25. 

109 
Differences, on a theorem in the calculus of, 
2. 
Dircks (Henry) on the production and pre- 
vention of smoke, 39. 
-— on the prevention of smoke from en- 
gine boilers and other furnaces, 98. 
—— on the construction of Luntley’s shadow- 
less burners, and the shape of glass chim- 
neys for lamps, 98. 
Dowden (Richard) on a luminous appearance 
on the common marigold, 79. 
— on the effect of light as a part of vital 
statistics, 96. 
—— on the heat and warmth of cottages, 
96. 
Draper (Prof.) on a change produced by ex- 
posure to the beams of the sun in the pro- 
perties of an elementary substance, 9. 
on the decomposition of carbonic acid 
gas, and the alkaline carbonates, by the 
light of the sun, 33. 
Drummond (Capt. H. M.) on birds found in 
Corfu and the Ionian Islands, 70. 

Earth, variation of the direction and inten- 
sity of the magnetic force of the, 12. 
Earthquakes, phenomena and theory of, 57. 
——,, on the late, at the islands of Antigua 
and Guadaloupe, 59. 
Economy, on the connexion between statis- 
tics and political, 94. 
Erbium, a new metal, associated with yttria, 
25, 30. 
Erichsen (J. E.) on the proximate cause of 
death after the spontaneous introduction 
of air into the veins, 83. 
Erratic blocks, distribution of, in Ireland, 40. 
Fauna, British molluscous, on the addition 
of the order Nucleobranchia to the, 72. 
Floatwater, buoyant, 102. 
Fluorine, electro-negative powers of, 39. 
Flute, principles of construction adapted to 
the perfection of the, 25. 
Feetuses, on the circulation of the blood in 
acardiac, 81. 
Forbes (Prof. E.) on the addition of the order 
Nucleobranchia to the British molluscous 
fauna, 72. 
—— on some living animals taken by means 
of the dredge off the coast of Cork, 74. 
Formula, barometric, correction to be applied 
for moisture to the, 20. 
Fossils of the tertiary and alluvial basin of 
the Middle Rhine, on the, 55. 
— of Polperro, in Cornwall, 56. 
Fuchsia, on abnormal forms in the flowers of, 
78. 
Galvanometer, description of a, 14. 
Gas, decomposition of carbonic acid, by the 
light of the sun, 33. 
Gas-burners, on the construction of Luntley’s 
shadowless, 98. 
Gasteropod, new genus of terrestrial, 77. 
Geography, physical, 40. 
