484 



Index. 



Colour of lunar seas, 388. 



Comet, Biela's, 208, 391. 



Comets connected with shooting stars, 

 390. 



Comet and shooting stars, 159. 



Composite, 128. 



Compound pipes, 474. 



Condensing light apparatus, 396. 



Conditions of illumination as to vertical 

 angle and lateral direction, 198. 



Conduits, ancient, 257. 



Configuration of land and water upon 

 the northern and southern hemi- 

 spheres, 338. 



Conglomerate, base of coal-fields, 37. 



Conglomerate deposit, 187. 



Conic section, easy introduction, 233. 



Conon crater, 381. 



Conspiracy, laws against, 106. 



Copal process, 412. 



Cope's " Jessica and Shy lock," 361. 



Copper,economic mode of reducing,397, 



Corethra plumicornis, larvae, 476. 



Corixa mercenaria, eggs, 467. 



Corrosion, protection of armour plates 

 from, 397. 



Court of the Star Chamber, 99. 



Cowry, 20. 



Crank bird, 324. 



Crater Linne, 58, 215, 222, 388, 480. 



Crimson star, 149. 



Craven bone caves, 76. 



Criminal court, 102. 



Crow's nests, 416. 



Crystals, formation of, 63. 



Crystallization and subsidence, 445. 



Curative properties of ancient gems, 405. 



Cures produced by a vibrating string,228. 



Cuttle fish, 164." 



Cyinbra olla, 19. 



Cyprsea, 20. 



Cyprsea turdus, 19. 



Cylinder seal-ring, 6. 

 Cyrtograpsis, 369. 



Dactyliotiiecje of Mithridates, 404. 

 Daguerreotype process of producing 



black, 23*0. 

 Damascening, 183. 

 J >anish prehistoric remains, 472. 

 Datura tatula, 448. 

 Decoloration of feathers, 172. 

 Delineation, lunar, 195. 

 Dendrograptus, 370. 

 Depicting solar phenomena by project- 

 ing sun's image on a screen, 429. 

 Descriptive astronomy, 231. 

 Development of graptolites, 290. 

 Devitrification of glass, 319. 

 Dew, an essay on, 78. 

 Dialytic separation of colloid septa, 452. 

 Diarrhoea and cholera, 157. 



Dichograpsus, 369. 



Dichroic liquid, 399. 



Dicranograptus, 371. 



Didymograpsus, 367. 



Diffusion of gases, 452. 



Dioptric light, expense of, 332. 



Diplograpsus, 366. 



Disappearance of Biela's comet, 214. 



Discina, 26. 



Discovery of Biela's comet, 208. 



Dissecting binocular microscope, 476. 



Dissolving vegetable fibre, 476. 



Distemper and fresco painting, 409. 



Diurnal temperature, 122. 



Diverging rays, 138. 



Domestic architecture of human race, 



414. 

 Donax anatinus, IS. 

 Double graptolite, 287. 

 Double stars, 277, 466. 

 Downy woodpecker, 324. 

 Drawing and sun viewing, 429. 

 Dredging, 19. 

 Drummond light, 396. 

 Duck and geese shooting in Cape 



Colony, 254. 

 Dungeness Lighthouse, 329. 



Eagles of Cape Colony, 251. 



Earrings, ancient, 2. 



Earring from Babylon, 7. 



Ear-shells, 235. 



Economic fuze for mining and other 



purposes, 156. 

 Economic mode of reducing copper, 397. 

 Economic production of oxygen for 



industrial purposes, 475. 

 Economic use of shells and their in- 

 habitants, 161. 

 Effects of difference of climate on 



frescoes, 409. 

 Efflorescence on fresco paintings, 410. 

 Eggs of Corixa mercenaria, 467. 

 Ehrenberg on the hyalonema, 480. 

 Eight days ramble in Cape Colony, 246. 

 Elder brethren of Trinity House, 332. 

 Electric energy, 320. 

 Electric lamps, 330. 

 Electric light, 327. 

 Electric light applicable to lighthouses, 



325. 

 Electric light utilized, 475. 

 Electricity, peculiar application of, 311. 

 Electricity, students text-book of, 234. 

 Electric telegraph, 317. 

 Electric thermometer, self-registering, 



228. 

 Electric machine, 156. 

 Elements, the, 78. 

 Emission of light, 139. 

 Enamelled ornaments, 184. 

 English law, 97. 



