LIST OF WOOD-CUT ILLUSTRATIONS. XXV 



PAGE 



201. Development of leaf-cells of Anacharis, after Wenhani . . 390 



202. Circulation in hairs of Tradescantia, after Slack . . . 394 



203. Testa of Star-Anise 396 



204. Section of Cherry-stone 396 



205. Section of Coquilla-nut 396 



206. Spiral cells of Oncidium 397 



207. Spiral fibres of Collomia 397 



208. Cells of Pa-ony, filled with. Starch 398 



209. Starch-grains, under polarized light 399 



210. Glandular fibres of Coniferous Wood 402 



211. Vascular tissue of Italian Reed, after Schleiden .... 404 



212. Transverse section of stem of Palm 406 



213. Ditto of Wanghie Cane 407 



214. Ditto of Hazel 410 



215. Ditto of Fossil Conifer 411 



216. Vertical section of Fossil Conifer, radial 411 



217. - Ditto Ditto, tangential . . . .411 



218. Ditto of Mahogany 412 



219. Transverse section of Aristolochia (?) 414 



220. Ditto of Burdock 415 



221. Cuticle of Yucca 418 



222. Ditto of Indian Com 418 



223. Ditto of Apple, after Brongniart 418 



224. Ditto of Rochea, Ditto 419 



225. Vertical Section of Leaf of Rochea, after Brongniart . . . 420 



226. Cuticle of Ms, Ditto .... 421 



227. Vertical Section of Leaf of Iris, Ditto .... 422 



228. Longitudinal Section of ditto, Ditto . . . .423 



229. Cuticle of Petal of Geranium 425 



230. Pollen-grains of Altlma, &c 428 



231. Seeds of Poppy, &c 432 



232. Gromia oviformis, after Schulze 439 



233. Actinophrys sol, after Claparede 440 



234. Amoeba princeps, after Ehrenberg 443 



235. Various forms of Amosbina, after Ehrenberg .... 445 



236. Gregarina from Earthworm, after Lieberkuhn .... 448 



237. Spharozoum ovodimare, after Haeckel 450 



238. Kerona silurus, and Pa ra m eci u m caudatum, after Milne-Edwards 453 



239. Group of Vorticellce, after Ehrenberg 454 



240. Fissiparous Multiplication of Chilodon, after Ehrenberg . . 458 



241. Encysting process in Vorticella, after Stein .... 459 



242. Metamorphosis of Trichoda, after Haime 461 



243. Brachionus pala, after Milne-Edwards 470 



244. Rotifer vulgaris, after Ehrenberg 471 



245. Manducatory apparatus of Euchlanis deflexa, after Gosse . . 473 



246. Stephanoceros Eichornii, after Ehrenberg ..... 478 



247. Noteus quadricornis, after Ehrenberg 480 



248. Rotalia ornata, after Schulze 484 



249. Alveolina Quoii 492 



250. Disk of Simple type of Orbitolites 493 



251. Animal of ditto 494 



252. Portion of animal of Complex type of Orbitolites . . . 496 



253. Internal casts of Teztularia and Rotalia, after Ehrenberg. . 502 



254. Tinoporus baculatus 503 



