492 



INDEX TO VOLUME LXVIII 



[DECEMBER I919 



Stone, H., work of 310 

 Stout, A. B. 109; work of 485 

 Succession 477 

 Suspensor of Trapa 312 



Tacinga 391 



Tansley, A. G., work of 478 



Taxus canadensis, staminate strobilus of 



345 

 Thoday, D., work of 72 



Thompson, T. G. 367 



Thompson, W. P. 451 



Thuja occid en talis, distribution of 149 



Tilia americana, ecology of 262 



Timber curing 310 



Tison, M. A., work of 312 



Torsion studies in twining plants 425 



Transpiration, in Tilia 262; of coniferous 



and broad-leaved trees 393 

 Trapa, suspensor of 312 

 True, R. H. 390; work of 69, 486 

 Tubaria furfuracea, development of i 

 Turgor and osmotic pressure 72 

 Twining plants, torsion studies in 425 

 Tyrosinase of fungi 392 



V 



Vale ton, Th., work of 152 

 Van Alstine, E., work of 312 

 Vernonia, new species of 488 

 Vestal, A. G. 153 

 Volutella 248 



w 



Walker, Leva B. i 



Waterman, W. G. 22 



Water movements in plants 72 



Weatherwax, P. 305 



Weaver, J. E. 393 



Weston, W. H. 287 



Wildeman, E., work of 232 



Willaman, J. J. 69, 71, 232, 392 



Williams, Maud, work of 232 



Williamsonia, cones of 152 



Wood structure and conductivity 483 



Woo, M. L. 313 



Yendo, K., work of 151 



Zingiberaceae of Java 152 

 Zoospores, in Dictyuchus 287 



