INDEX. 



457 



Snow, crystals of, 118. 

 - — red, 404. 

 Sphagnum, leaf of, 438. 

 Spider tribes, 282. 



diving, 285. 



Sponges, 177. 



skeletons of, 186. 



Starch in plants, 422. 



tests for, 411, 424. 



Steutor, 165. 



Stinging-nettle, leaves of, 432. 

 Structure of shells, 266. 

 Sugar insect, 331. 



cane, 439. 



Swammerdam's dissection of insects, 



286, 

 Synaptidw, 252. 



Teeth, 375. 



Test objects, 44, 306. 



Tissues, consolidated animal, 372. 



elastic and non-elastic, 368. 



Tomata, diseased, 400. 



Topping's, Mr., fluid for mounting, 95. 



test-objects, 307. 



Torula cerevisia, 398. 



diabetica, 3S9. 



Tourmaline, 109. 

 Transformation of insects, 338. , 

 Trichocera hyemalis, 301. 

 Troughs for animalcules, 72. 

 Tubicola, 276. 

 Tubularidae, 208. 



Ward, N. B., Mr,, on aquaria, 245. 

 Warington's, Mr., microscope, 447. 



preservative fluid, 81. 



Wasp's tongue, 289. 

 Water-beetle, sucker of, 292. 

 Water microscope, 8. 



Water-mites, 336. 



Wenham, Mr., binocular microscope, 

 121, 



— illuminator, 62. 



West wood on insects, 294. 



Wheat-flour, adulterations of, 425. 



portions of husk, 423. 



Wichura, M., on the spiral forces of na- 

 ture, 368. 



Wollaston's and Coddington's lenses, 26. 



Wonders of microscope, 155. 



Wood, cutting sections of, 444. 



Woodward, Mr., on polarised light, 108. 



Vallisnebta, 433. 



Varley, Mr., on the culture of water- 

 plants, 434. 

 Vegetables, structure of, 394. 



cellular tissue of, 419. 



fvmgi, 401, 



hairs in, 432. 



preparation of tissues, 440. 



raphides in, 420. 



starch in, 424. 



vascular tissue in, 436. 



Vibrio spirilla, 145. 

 Virgularia mirabilis, 214. 

 Vivaria, the mode of forming, 244. 



by Mr. Gosse, 243. 



by Mr. Lloyd, 393. 



Volvox, 407. 

 Vorticellidae, 163. 



Xanthidia, 192. 



Yeast-plant, 399. 



Zoological Society's marine vivaria, 



243. 

 Zoophytes, 195. 



preservation of polypidoms of, 241. 



Zygoceros rhombus, 162. 



miNTED BT BOBSON, U;VBY, AND FBANKLTH, 

 Great New Street nnd Fetter Lane. 



