XXll 



LIST OF ILLUSTRATIONS. 



291. Traehece of Dytiscus, 



292. Spiracle of Fbj, ..... 



293. Spiracle of Larva of CockcJiaffer, 



294. Foot of Fly, after Hepworth, . 



295. Foot oi Dytiscus, .... 



296. Eggs of Insects, after Burmeister, 



297. Foot, with combs, of Spider, 



298. Ordinary and glutinous threads of Spider, 



299. Minute Structure of Bone, after Wilson, 



300. Laounfe of Ditto, highly magnified, after Mandl, 



301. Section of Bony scale of iepirfosfeas, 



302. Vertical Section of Tooth of Lamna, after Owen, 



303. Transverse Ditto of Prisiis, ditto, 



304. Ditto Ditto oi Myliohates, 



305. Vertical Section of Human Tooth, after Mandl, 



306. Portion of Skin of Sole, .... 



307. Scale of Sole, 



308. Hair of Jtf«.sA--i)eer, 



309. Hairof&iZe, 



310. Hairs of Squirrel and Indian Bat, 



311. Transverse section of Hair of Pecari, 



312. Structure oi Human Hair, after Wilson, 



313. Transverse section of Horn of Rhinoceros, 



314. Blood-corpuscles of Frog, after Donne, . 



315. Ditto of Man, Ditto, 



316. Fibrous Membrane of Egg-shell, 



317. White Fibrous Tissue, 



318. Yellow Fibrous Tissue, . 



319. Pigment-cells of Choroid, after Henle, 



320. Pigment-cells of Tadpole, after Schwann, 



321. Ciliated Epithelium, after Mandl, 



322. Areolar and Adipose Tissue, after Mandl, 



323. Cartilage of Ear of JlfojMC, . 



324. Cartilage of Tadpole, after Schwann, 



325. Striated Muscular Fibre, 



326. Ultimate fibrilla; of Ditto, 



327. Capillary Circulation in Web of Frog's foot, after Wagner, 



328. Intestinal villi of Monkey, 



329. Various forms of Capillary network, after Berres, 



330. Portion of Gill of ^ei, .... 



331. Interior of Lung of i^rogr, 



332. Section of Lung of Fowl, 



333. Section of iZi<mn?( Lung, .... 



334. ■ Microscopic organisms in Levant Mud, after Williamson, 



335. Ditto in Chalk from Gravesend, after Ehrenberg, 



336. Ditto Ditto from Meudon, Ditto 



337. Vertical section of Niimmulite, .... 



338. Portion of Ditto, more highly magnified, 



339. Horizontal section of Ditto, ..... 



340. Section of Orhitoides PruUii parallel to its surface, 



341. Portions of Ditto, more highly magnified, . 



342. Vertical section of Ditto, .... 



343. Eye of Trilohitc, after Buckland, .... 



344. Section of Tooth of Labyriniliodon, after Owen, 



345. Crystallized Silver, ...... 



346. Oily Matter in Fibres of Brain (Todd and Bowm^an), . 



347. Corpora Amylacea of Pineal Gland (Sleveking and Jones), 



348. Fatty Degeneration of Nerve-Fibre, 



349. Striated Muscular Fibre, ..... 



350. Elongated Muscle-Cells (Non-Striated), 



351. Saroolemma, ...... 



