-Igtt] 
Te emperature arts of duration of 
life cabin é 
Tessmann pers 
_ Theissen, ep work of 74 
ay, D., "work of 1 58 
Bio mre 156; in Cyperus 28, 102; 
_ of Hym nophyllaceae 
mker, ‘‘Landwirt- 
a Studien i in Nord Amerika’”’ 
, Tschulok, Pri Sa 
Biologi 
Tupper, Wa ite: ow. 374 
Turgescence and respiration 314 
U ‘ 
“Das System der 
Umbbelliferae 300 
Uredineae 72, 396 
. Urban, L, eg ot 300 
Utah, rusts and smuts of 397 
ne 
Vaccinium caesariense 397 
Vesetative i si of 161 
Viola 7 
INDEX TO VOLUME LI 
| WwW 
Warburton, C. W. 64 
Weichsélia, gece of 316 . 
Weingart, W., work of 399 
Welwitschia, ipawonis of 240; embryo of 
79 
Whitford, ‘ — work of 312 
Whitfordia 
William me %., work of 3 
Willis halen, “Outlines of geologic 
i DB] 71 
Willis, J. C., work of 477 
Wilson, H. L., work of 3990 
Wilson’ P , work of 
Winkler, Hans, work of 147, 148, 
* I5t, 152, 153, 399 
Woif, F. A., oe ae 74, 153, 154 
Wolff, Cae Cork of 74, 
Woodworthia 314 
Yapp, R. H., work of 78 
York, H. H., work of 310 
Young, W. J., work of 236 
oe 
Zaleski, W., work of 7 
ae nski, Felix, ork of 474 
mmermannia 
