313_h_. Lines assembled into a “Form” 651 313_i_. Matrices dropping into Magazine 652 314. Recording Anemometer 653 315. Registration of Height of Barometer and Thermometer 655 316. Electric Chronograph 657 317. Negretti’s Deep-Sea Thermometer 661 318. Ditto, General Arrangement 662 319. Atmospheric Recording Instrument 663 319_a_. Traces of Vibrations of a Tuning-Fork 667 319_b_. Phonautographic Tracings of Different Vowel Sounds 667 319_c_. Diagram 668 319_d_. Phases of Sound Waves 668 319_e_. Edison’s Original Phonograph 670 319_f_. Diagrammatic Section of Phonograph 671 319_g_. The Graphophone 672 319_h_. Edison’s Perfected Phonograph 674 320. Domestic Aquarium 675 321. The Opelet 679 322. Viviparous Blenny 680 323. The Lancelet 681 324. Sea-Horses 683 325. Proteus anguinus 684 326. Mud-Fish 685 327. The Axolotl 686 328. Sorting, Washing, and Digging at the South African 687 Diamond Fields 329. Gold Miner’s Camp 689 330. Gold in Rocks 690 331. “Cradle” for Gold-washing 690 332. Pniel, from Jardine’s Hotel 702 333. Sifting at the “Dry Diggings” 703 334. Vaal River, from Spence Kopje 704 334_a_. Sketch Section of the Kimberley Diamond Mine 709 335. Portrait of Sir Humphrey Davy 714 336. Apparatus 717 337. Portrait of Mr. Thomas Hancock 724 338. Portrait of Sir James Young Simpson, M.D. 731 339. Railway Cutting 740 340. View on the Tyne 751 341. Fossil Trees in a Railway Cutting 752 342. Impression of Leaf in Coal Measures 753