None
— pores, of Tropeolum majus, 88 (fig. 32); of Fuchsia, 89. — reservoir, the epidermis as a, 83, 86. — stomata. See water-pores. Watson’s microscopes, xxii. Wax, use of, to close preparations, 442; relations with alcohol, 100. 527 Wax drops, for the protection of ob- jects, 442. — layer in Echeveria globosa, 99; Eucalyptus globulus, 99; Iris florentina, 80; Prunus domestica, 423; Pyrus malus, 425; Sacc- harum officinarum, 100 (fig. 39). — reactions of, 100. Wendungszelle, 309. Wheat, Rust of. See Puccinia. — See Triticum, Willow. See Salix. Wood, separation of elements maceration, 159 (fig. 63). — parenchyma, 104. — structure of. See vascular bundle. — to cut sections of, 74. — (xylem), 104. See also vascular bundles. Wound-mucilage, 202. Wounds, closing of (wound-cork), 187. by XANTHOPROTEID reaction, 490 Xylem (wood), 104. See also vascular bundles. Xylol, use of, 37, 272. YEARLY rings, 140 (fig. 53). Yeast. See Saccharomyces, also Mucor- yeast. Yew. See Taxus baccata. Yucca, pistil of, 396. Zamia, spermatozoids in, 376. Zea mais, structure of vascular bundles, 101 (figs. 40, 41). Zeiss’s microscopes, xxii; for dissect- ing, 206 (figs. 80, 81). Ziehl’s carbolic fuchsin. 273. Zinc chloride. See mordants. — frames. See drying frames. Zoogloa, 267, 268, 277, 281. Zoogonidia. See swarm-spores. Zoospores. See swarm-spores. Zygnema, 293. Zygote (Zygospore), of Spirogyra, 292; of Vaucheria, 298; of Fucus, 303; of Chara, 310; of Mucor, 315. ABERDEEN UNIVERSITY PRESS SIERVAON. “00000000000 No Tedone one. 