775 



INDEX. 



Campylometer, Construction, 750. 



, , Use of the, 749. 



Cancer, Constellation, 538. 

 Candle, The burning of 155. 

 Capillarity, 25 



, , t Description of, 64, 25. 

 Capillary attraction, 64, 25. 

 Capricornus, Constellation, 539. 

 " Carbon, Importance of, 368. 



, , Mineral nature of, 435. 

 Carbonic acid, 343. 



,, Danger of, 374. 



Carboniferous formation, The, 578. 

 Carbonization, Slow, 423. 

 Card, to perforate by electricity, 215. 

 Caseine, 422. 



Castelli, Experiment of, 78. 

 Catalepsy, How to induce, 12. 



,, in fowls, 12. 

 Cataleptic fowl, The, 12. 

 Cell, A botanical, 661. 

 Cells, Animal, 704. 



,, Plant, 661. 

 Cellular tissues, 661. 

 Cementation, 398. 

 Centre of Gravity, 25. 

 ,, magnitude, 34. 

 ,, parallel forces, 34. 

 Centrifugal force, 43. 

 Cephalopods, 725. 

 Ceres, Discovery of, 528. 

 Chalk, Fossils of the, 589. 

 Chance, Analysis of, 726. 

 Chemical attraction, 25. 

 Chemistry, Early history of, 336. 

 , Introduction to, 307. 

 Organic, 410. 

 Sleight of hand and, 335. 

 The science of, 22. 

 without a laboratory, 313. 

 Chidren, Simply-made toys for, 764. 

 ,, Trapeze and swing for, 763. 

 Chladni's figures, 195. 

 Chlorine, 366. 



Uses of, 367. 

 Chloioform, Use*of, 420. 

 Chlorophane, 333. 

 Chlorophyl, Definition of, 660. 

 Chromatic aberration, 104. 

 Chromosphere, The sun's, 499. 

 Chromium, 404, 446. 

 Chromograph, The, 748. 

 Chronograph, The, 478. 

 Chronometers, Solar, Use of, 563. 

 Circles, Optical illusions with, 131. 

 Circulating fountain, The, 454. 

 Cirripeds, The, 723. 

 Classification of animals, 701. 



,, plants, 694. 



Clay, Uses of, 321. 

 Cleavage attribute of minerals, 432. 

 Clepsydra, The, 479. 

 Climate, Differences in, 653. 

 ^ ,, Meaning of the term, 652. 

 Climatology, 651. 

 Clock, A cosmographical, 559. 

 ,, Cadot's, 752. 

 ,, Houdin's, 752. 

 , r Roberts', 753. 

 Clock-lamp, A, 759. 

 Clocks, Ancient, 479. 

 Mysterious, 752. 

 ,, Watches and, 479. 

 Clouds, Causes of, 634. 



,, Classification of, 635. 

 ,, Electricity in, 287. 

 Vapour and, 634. 

 Coal, Formation of, 375. 



Coal found in basins, 581. 

 ,, measures, Animal life of, 578. 

 ,, period, Plants of the, 80. ' 

 Cobalt,. Nickle and, 401, 445. 

 Cock, A cataleptic, 12. 

 Cohesion attribute of minerals, 431. 



,, Attraction of, 24. 

 Coke ovens, 370. 

 Coleoptera, The, 720. 

 Collection of insects, 8. 

 Colouring of flowers, Artificial, 329. 

 Colours, Star, 548. 

 Coma, 416. 

 Combustion, 345. 

 Comets, Celebrated, 492. 



,, distinguished by, 491. 

 Commutator, The, 236. 

 Compass, Azumith, The, 260. 

 ,, Invention of the, 259. 

 ,, Mariners', To make, 201. 

 ,, Ordinary form of the, 259. 

 Compensation in optics, 132. 

 Composition of the atmosphere, 340. 

 Conduction of electricity, 202. 

 Conductors, electric, List of, 210. 



,, Heat, 89. 

 Constellations, Northern, 541. 

 ,, Southern, 543. 



,, The chief, 536. 



Copper, 401, 445. 

 Coral insect, The, 620. 



,, islands, 619. 

 Corals, 710. 



Cords, Knots, and puzzles, 775. 

 Corolla, The, 675. 

 Cost of light, 101. 

 Crabs, 723. 



,, Hermit, 723. 

 Crust, The earth's, 566. 

 Crustacea, The, 722. 

 Crystallization, Instantaneous, 319. 

 Crystallography, 424. 



, , The study of, 427. 



Crystals, Definition of term, 426. 

 ,, Forms of, 427. 

 ,, Systems of, 427, el. sq. 

 Cucumbers, Sea, 714. 

 Cups, Volta's crown of, 220. 

 Curiosity, The age of 8. 

 Currents, Air, winds, and, 629. 

 Curves, Various sound, 176. 

 Cyanogen, 378. 



Daguerreotypes described, 152. 

 Dark spot, The, 134. 

 Dazzling top, The, 128. 

 Dead Sea, Drowning in the, 67. 

 Decomposition, 423. 

 Definition of physics, 22. 

 Definitions, Scientific, 4. 

 Density, Laws about, 24. 

 Despatch, The pneumatic, 57. 

 Devonian system, 576. 

 Dew, Hail and, 641. 

 Diamonds, Cutting of, 369. 

 Dip, Magnetic, 256. 

 Discharges, Electric, 214. 

 Discoveries, Astronomical, 468. 

 Discs, Rotating use of, 108. 

 Distances, Measurement of, 482. 

 Distillation, Sublimation and, 86. 

 Dogs, New work for, 758. 

 Double stars, List of, 547. 

 Dress, Boyton's swimming, 460. 

 Drops, Prince Rupert's, 81. 

 Drummond light, The, 160. 

 Dunes, History of the, 615. 

 Dyes, Hair, 326. 



Ear, Anatomy of the, i6e>. 

 Earth, Constitution of the, <;t>d. 

 Crust of the, 566. 

 Facts. about the, 508. 

 Formation of the, 566. 

 Form of the, 504. 

 Latitude and longitude cf, 504. 

 Motion of ttie, 504. 

 Rate of motion of the, 504. 

 Stoppage of the, 507. 

 Track of the, 506. 

 Earthquakes, Motion of, 623. 



,, Volcanoes and, 620. 



Ebullition, 83. 



, , Temperatire for, 83. 

 Echo, Causes of, 171. 



,, Definition of an, 171. 

 Eclipses, Causes of, 518. 

 ,, ' Lunar, 519. 

 Solar, 519. 

 Ecliptic, The, 497. 

 Egg, electric, The, 214. 

 Elasticity, Motion by, 36. 

 Electric egg, The, 214. 



,, light, How to produce, 265. 

 ,, machine, To make an, 207. 

 , , pen, The, 248. 

 ,, toys, 279. 

 Electricity a mystery, 197. 



,, Animal and other, 282. 

 ,, Conduction of, 202. 

 ,, decomposes water, 226. 

 Derivation of, 197. 

 ,, Domestic lighting by, 271. 

 ,, in clouds, 287. 

 ,, in medicine, 230. 

 ,, Negative and positive, 203. 

 ,, Novel applications of, 250. 

 ,, not to be played with, 205. 

 ,, Static and dynamic, 209. 

 , Velocity of, 212. 

 Electro-magnetism, 255, 260. 

 Electro-motograph, The, 262. 

 Electroplating, 227. 

 Electrotyping, 229. 

 Electrodes, Poles or, 221. 

 Electrolysis, 226. 

 Electrometer, Torsion, The, 209. 

 Electrophorus, How to make, 198. 



,, Peiffer's, 279. 



Electroscope, To make an, 206. 

 Elements, Definition of the, 307. 

 ,, Electrical relation, 410. 

 ,, Phial of the four, 47. 



Table of the, 308. ' 

 Emulsion process, The, 153. 

 Encrinites, The, 713. 

 Endless rails, Use of, 771. 

 Endogens, Enogens and, 665. 

 Endosmose, 663, 692. 

 Energy changed into heat, 91. 

 Entozoa, The, 716. 

 Eocene formation, The, 591. 

 Epidermis of plants, 664. 

 Epsom salts, 395. 

 Equator, Magnetic, 256. 

 Equilibrium, Laws of, 28. 

 Equatorial, The, 478. 

 Equinoctial, The, 495. 

 Equinoxes, Precession of the, 497. 



,, Solstices and, 496. 

 Eruption, Signs of an, 621. 

 Estimation, ocular, Illusions of, 116. 

 Ether, 419. 

 ,, Stillness of, 168. 

 ,, The nature of, 93. 

 Eudrometer, Use of the, 353. 

 Europe, Geological date of, 593. 



