GENERAL INDEX. 



Copper, its advantages for steam- 

 boilers, v. 3 ; vi. 203 



Coral reefs, xii. 77 



Cornea, v. 51 ; vi. 60 



Cornish China-clay, ii. 166 



engines, iv. 207 



Corpuscular theory of light, i. 195 



Correspondents of journals, iii. 15 



Corrosion of marine boilers, x. 143 



Corsica, system of, xii. 19 



Cote d'Or, xii. 18 



Cotopaxi, iv. 173 



Cotton, transport of, iii. 3 



Counter-steam contrived by Watt, v. 

 48 



Coupled wheels of locomotives, vi. 

 119 



Craters of elevation, iv. 170 ; ib. 174 ; 

 xi. 106 



Creative power, xi. 38 ; ib. 56 



Creosoted deal troughing, iii. 146 



Cretaceous age, xii. 94 



Cricket, Shakspeare's allusion to the, 



ix. 202 



Crime, iv. 82 ; viii. 95 

 Crowded rooms poisonous, ii. 14 ; ib. 



204 



Crown-wheels, vi. 20 

 Crusades, the, iii. 22 

 Crust of the earth, iv. 148 

 Crustaceous animalculae, ix. 93 

 Cryophorous, Herschel's experiment 



of the, iii. 40 

 Crystalline humour, v. 52 

 Crystals of salt, vi. 204 

 Cuban railways, ii. 62 

 Cunard steamers, x. 119 

 Cupping, ii. 5 

 Current, electric, iii. 122 



voltaic, ix. 41 



Curves, expedient for passing railway, 



ii. 47 



Cuttle-fish, v. 80 

 Cuvier, viii. 117 ; xi. 137 

 Cyclops minutus, ix. 26 

 Cyprsea elegans, xi. 64 

 Gyrene, potters of, ii. 123 



DAGUERREOTYPE, microscopic, vi. 99 

 Dalton, Dr., i. 86 ; v. 96 

 Damper in steam-furnace, v. 18 

 Daniel's constant battery, iii. 126 

 Dardanelles arid Bosphorus, ix. 141 

 196 



Darnet, Mde., ii. 105 



Darwin, Dr., viii. 138 



Davy, Sir H., iv. 188 



Dawes', Mr., observations on Saturn's 

 rings, i. 56 



Day, i. 34 ; v. 118 ; ib. 140 ; vi. 75 



De Luc's balloon ascent, iv. 185 



Dead plates of steam-engine, v. 12 



points in action of steam-engine, 



vi. 116 



Decimal reckoning for time desirable, 

 v. 118 



Declension, the sun's, i. 104 



Degeer's examples of instinct in ani- 

 mals, viii. 133 



Deluge, the, ii. 90 



De Morgan, Prof., vii. 18 



Densities of the planets, i. 35 



Density of water, iii. 77 ; iv. 184 



Derby porcelain, ii. 165 



Descartes, viii. 115 



Desk, metallic, iv 47 



Despatches, telegraphic, iv. 77 



Detonations, subterranean, iv. 172 



Dew, iii. 91 



Diagonal barometer, iv. 182 



Dial, iii. 204 



Diamonds, iii. 116 ; vii. 108 



Diaphragms, ix. 31 



Diathermous bodies, vi. 148 



Differential thermometer, vi. 159 



Diffraction, i. 205 ; ix. 45 



Dilation and contraction by variation 

 of heat, vi. 146 



Diligences, iii. 12 



Diluvium, xi. 46 



Dionysius Exiguus, vii. 5 



Discordant stratification, xi. 73 



Diseases, i. 125 ; ii. 77 



Dispersive power, vii. Ill 



Dissolving views, viii. 198 



Distillation, ii. 104 



Diurnal parallax, vii. 175 



rotation of heavens, v. 123 



Divine wisdom, vi. 194 



Divisibility of matter, vi. 197 : ib. 



204 



Dog, the, vii. 91 ; viii. 157 ; ix. 193 

 Dog-days, vii. 38 ; ix. 169 

 Dog-star, vii. 191 



Domesticity and tameness, viii. 173 

 Donne, Dr., vi. 99 



Double action, of forcing pump, vi. 

 189 



