230 
Crops, on the annual yield of nitrogen 
per acre in different, 52. 
Crosskill (Alfred) on reaping machinery 
209. 
Crustacea (Bellinurus, Kénig) from the 
coal measures in Queen’s County, on 
two new species of, 76. 
Crystallization, on a fresh form of, which 
takes place in the particles of fallen 
snow under intense cold, 40. 
Cull (Richard) on Dr. Prichard’s identi- 
fication of the Russians with the Rox- 
olani, 148. 
Cumberland, West, on some phenomena 
at the junction of the granite and schis- 
tose rocks in, 106; on the hematite 
ores of, 2b. 
Curve lines, on an instrument for setting 
out, 223. 
Curves and curved surfaces, on the mutual 
_ relations of inverse, 3. 
Cuttle-fish, on the crystalline lens of the, 
10. 
Cyclopteris Hibernica (Forbes), on the 
fructification of, 75. 
Dale (Rev. T. P.) on some optical pro- 
- perties of phosphorus, 15. 
Davis (J. H.) on the plants of the oolitic 
moorlands, 224. 
Davy (Dr. J.) on the fishes of the Lake 
District, 122 ; observations on the Lake 
District, 149. 
Dawson (Prof.) on the vegetable structure 
visible in the coal of Nova Scotia, 80. 
Deeds, registry of, in the West Riding, 
175 
De Luca (M.), on his claim to be the dis- 
coverer of the non-presence of iodine 
in the atmospheric air, rain-water, and 
snow, 56. 
Dials which give the latitude, the line of 
north and south, and chronometer time, 
AN 
Dibb (J. E.) on registry of deeds in the 
West Riding, 175. 
Digestion, experiments on, 135. 
Dimorphodon, 97. 
Dingle (Rev. G.) on a new case of bino- 
cular vision, 15; on the configuration 
of the surface of the Earth, 150. 
Dircks (Henry) on an apparatus for ex- 
hibiting optical illusions of spectral 
phenomena, 14. 
Dispensaries, notes on self-supporting, 
170. 
Donati’s cont, on, 28. 
Donnelly (Mr.), manner in which agricul- 
tural statistics are collected in Ireland, 
176. 
INDEX II. 
Donohoe (Consul) on Pacific railway 
schemes, 149, 
Dorsetshire, on a remarkable deposit of 
carbonate of lime about fossils in the 
lower lias of, 51. 
Drainage of the metropolis, on the, 213. 
Draper (C. L.) on electro-magnetism, 25. 
Drummond (J.) on the development of a 
physical theory of terrestrial magnet- 
ism, 25; on the intensity of the ter- 
restrial magnetic force, 24. 
Dry dock, on a floating, 206. 
Dye, on the purple, obtained from coal- 
tar, 58. 
Earnshaw (Rev. 5.) on the mathematical 
theory of sound, 34. 
Earth, on the distribution of heat in the 
interior of the, 23; on the configura- 
tion of the surface of the, 150; on 
the general and gradual desiccation 
of the, and atmosphere, 155. 
Earthworms and larve of an undescribed 
species, on, 129. 
Education, degree of, of persons tried at 
the Middlesex Sessions, 168. 
Edwards (J. Baker) on nitro-glycerine 
and other xyloids, 47. 
Elder (J. J.) on double cylinder expan- 
sion marine engines, 210. 
Electric cables, on the submersion of, 
215. 
Electric lamp, on an improved, 55. 
Electric wires, extension of communica- 
tion to distant places by means of, 148. 
Electrical discharges, on induced, taken 
in aqueous vapour, 25; observed in 
highly rarefied carbonic acid in contact 
with potash, 50. 
Electricity, 24, 
Electrodes, on the influence of light o 
polarized, 17. : 
Electro-magnetism, on, 25. 
Elementary bodies, on the indestructi- 
bility of, 6. 
Ellis (R. L.).on the cause of the instine- 
tive tendency of bees to form hexagonal 
cells, 122. 
England, woollen manufacture of, 158 ; on 
the history of flax-spinning in, 184. 
Entomostraca, 77. 
Enys (J. S,), photographs of quarries 
near Penrhyn, showing the structure 
of granite, 80. 
Equilibrium, on the conditions of, in a 
rotating spheroid, 5. 
Ethnology, 148. 
Examinations, on the progress of the prin- 
ciple of open competitive, 175; on 
2 | 
