s6o 



INDEX 



Wohler, on synthesis of urea, xxxi 



Wolff, on ash analyses, 88 



Wolkoff and Mayer, on respiration, 213, 219 



Wollny, on evaporation from soil, etc., 137 



Wood, air of, 132; strains in, 253; water movement 



in, 133 

 Work, of plants, 201, 223 

 Wortmann, on respiration, 204; on growth, 246; in 



root hairs, 272; on yeast in grape juice, 204, 205 

 Wottschal, see Votchal. 

 Wounding, traction and pressure influencing 



growth, 302-307; wounding and metabolism, 



143, 183, 185, 216, 229; and responses, 300, 301, 



302 

 Wulfert, on determination of nitrates, 181 



Xanthin, 165, 176, 178-180 

 Xanthophyll, 6, 20 

 Xanthoproteic reaction, 159 

 Xerophytes, 265 

 Xylem, 142, 143, 153 

 Xylose, 189 



Y 



Yarrow (see also Achillea), 278 



Yeast (see also Saccharomyces) , 43, 44, 47, 79, 165, 



168, 170, 172, 173. 204, 208, 211, 261, 333; 



Mucor yeast, 262, 263 



Yegounow, see Yegunov. 

 Yegunov, on sulphur bacteria, 50 

 Young, see Harden and Y. 



Zaleski, see Zaliesskii. 



Zaliesskii, on phosphoproteins, 165; on respiration, 

 171; on nucleo-proteins, 176; on protein forma- 

 tion, 181, 183, 184; in seeds, 177; on protein de- 

 composition, 177; on phosphorus compounds in 

 seeds, and on phosphoproteins, 177; on sprout- 

 ing of onion bulbs, 182; on ether and transfer of 

 substances, 183; on ammonia formation, 177, 

 183, 184; on nucleic acid in germinating seeds, 

 184; on carboxylase, 209; on stimulation of res- 

 piration, 216; Z. and Reinhardt, on respiration 

 and salts, 217. (See also Nentskii and Z.) 



Zdobnicky, see Stoklasa and Z. 



Zea (see also maize), 162, 187, 255 



Zein, 161 



Zimmermann, on microtechnic, 90 



Zinc, 82, 87, 121, 166; chloride, 112, sulphate, 47 121 



Zoospores, 333, 334 



Zygnema, 120 



Zygomorphic flowers, 297 



Zymase, 166, 170, 17 2 , 205, 227, 229 



Zymin, 170, 172, 207 



