INDEX II. 229 
Breccias, on the origin of the, of the 
southern frontier of the valley of the 
Nith, Scotland, 81. 
Brewster (Sir David) on the duration of 
luminous impressions on certain points 
of the retina, 6; on vision through the 
foramen centrale of the retina, 7; on 
certain abnormal structures in the cry- 
stalline lenses of animals, and in the 
human crystalline, 7; on the crystal- 
line lens of the cuttle-fish, 10 ; on Prof, 
Petzval’s new combination lens, 13; 
on the use of amethyst plates in expe- 
riments on the polarization of light, 75, 
Brixham, ossiferous cavern at, 106. 
Brodrick (C.) on the roof of the new 
Town Hall, Leeds, 207. 
Brooke (C.) on additions to the micro- 
scope, 143. 
Broun (Mr.) on the successful establish- 
ment of a meteorological and magnet- 
ical observatory at Travancore, and 
results of magnetical observations at 
Trevandrum, 30; notice of the Kani- 
kars, a hill-side tribe in the kingdom 
of Travancore, 148. 
Brown (Samuel) on the financial pro. 
spects of British railways, 172. 
Buckton, (J.) on the articles shown in 
the Mechanical Section of the Leeds 
exhibition of local industry, 208. 
Buoy, Gresham, for recording the loss of 
missing ships at sea, 219, 
Cables, on constructing and laying tele- 
graph, 214; apparatus for laying down 
submarine telegraph, 73.; on the sub- 
mersion of electric, 215. 
Cairnes (Prof.) on the laws according to 
which a depreciation of the precious 
metals consequent upon an increase of 
supply takes place, considered in con- 
nexion with the recent gold discoveries, 
174. 
Calvert (F. Crace) on the expansion of 
metals, alloys, and salts, 46. 
Cambridge, on remai:s of new and gi- 
gantic species of Pterodactyle from the 
upper greensand, near, 98, 
Cannon, on the bursting of, 221. 
Carlile (Warrand) on dials which give the 
latitude, the line of north and south, 
and chronometer time, 41. 
Carrett (W. E.) on some modern ap- 
pliances for raising water, 208. 
Carrington (Dr.) on the geological distri- 
bution of plants in some districts of 
Yorkshire, 115. 
Cavern, ossiferous, at Brixham, 106. 
Cayley (A.) on the notion of distance in 
analytical geometry, 3. 
Chadwick (Edwin) on the progress of the 
principle of open competitive examina- 
tions, 175. 
Charlesworth (Edward) on some remark- 
able Yorkshire fossils, including the 
unique Plesiosauri in the Museum at 
York, with pictorial restorations by 
Mr. Waterhouse Hawkins, 223, 
Chemical elements, on the relation of the 
atomic weights of the families of the, 
57, 59. 
Chemistry, 41 ; address to the Section by 
Sir J. F. W. Herschel, Bart., id. 
Chesney (Maj.-Gen.) on the extension of 
communications to distant places by 
means of electric wires, 148. 
Civilization and comfort, trade and com- 
merce the auxiliaries of, 169. 
Coal, on the vegetable structure visible in 
the, of Nova Scotia, 80. 
Coal-basin, on the marine shell bed of 
the S. Wales, 80. 
Coal-measures, on two new species of 
Crustacea from the, in Queen’s County, 
76. 
Coal-tar, on the purple dye obtained 
from, 58. 
Cock, on a universal, 221. 
Cole (Robert), account of Lewis Paul and 
his invention of the machine for spin- 
ning cotton and wool by rollers, and 
his claim to such invention, to the ex- 
clusion of John Wyatt, 208. 
Coleoptera, myrmecophilous, 129. 
Collingwood (Cuthbert) on the migration 
of birds, 121. 
Collodion processes, on dry, 71. 
Comets, on the constitution of, 30. 
Conybeare (H.) on the physical geogra- 
phy of the neighbourhood of Bombay, 
as affecting the design of the works 
recently erected for the water-supply 
of that city, 149; on an apparatus for 
laying down submarine telegraphic 
cables, 208. 
Coombe (Mr.) on expanding pulleys, 209. 
Cooper (E. J.) on the perihelia and as- 
cending nodes of the planets, 27, 
Cottons, on the causes of the fall in price 
of manufactured, 178. 
Coventry provident dispensary, some 
statistics of the, 170. 
Crawfurd (J.) on the effects of commix- 
ture, locality, climate, and food on the 
races of man, 149. 
Crédit mobilier, recent history of the, 194. 
Crime and punishment, on subjects con- 
nected with, 199. 
