GENERAL INDEX 
Classified entries will be found under Contributors and Reviewers. New names 
and names of new genera, species, and varieties are printed in bold-face type; syno- 
nyms in tfalic. 
A 
Accessory foods for plants 247 
Acer Negundo, — growth in 454 
Acid soils, gash 
Adams, J. F. 131 
African Hora 471 
Atterripening = germination of Juni- 
perus seeds 3 
Algae, oles f 336; marine, of Beau- 
ad 4s subterranean flora 78 
pr hain and soil shies 159 
\lway, F. . work of 80 
Andersen, Emm 
by Sp 4p pe Sp 4 
e a 
ain S., work of ec 
Apoga: in Osmunda 
pit age Fa constituent of 78 
Arthur. f 2 
ur, 
7 
Artschwager, E. 400 
Aseptaria 471 
Atmometer, ea tan mounting 80 
Australian flora 
Awn and barley yield 77 
B 
Bacterial diseases of plants 401 
Bailey, I. W. 3345, W work of 408 
Baile ley, L. ae of 79 
Barley viel ty 
tratt, Kate, age of 335 
Benbickiam 
Bergman, ork of 8 
Berry, E. W., «'Paleobotany” 238 
Birch, experimental por ot gaa on 220 
Blackma: n, V. H., work of 24 
Blakeslee, A. F. J ; 
liss, Ma 
ary 
Blister sg eieatonigsiic Sedat 
473 
Bonnier, G., work of 4 
Bottomley, W. B., work of 247 
Brause, G., work of 7 
Britton, N. Ls ihe oR 
Bro sity Elizabeth Deity Wuist, work 
Pvethig Isabel M. ie work of 335 
E. 4 
Burt, E. A., work of 241 
C 
Calcium 
Ca seme 
ambium, antine ‘sf 408 
fo) 
a) 
(Sle ele ele: g OS 
a 
(=) 
BES 
ee ea oe 
a & ae 
a4 Qganvy 
ef0” 
Ry 
5 
=. 
a 
~? 
~I 
40 
<. “work of 7 
Chloroioiae of zinc in onsite histology 
Oo 
5 
ne 
2 
Choate, Helen A. 4 
Chodat 
Church, A. H., wi 
Clark, W. M., “The determination of 
hydrogen ions” 155 
Clerodendron in Indo-China 471 
Coker, R. E., work of 468 
Colo aevaee 
Colombia, Scrophularacea of 241 
Congo, flora of 2 aid 
Conifer grafting se 
Contributors: Adams, J. F. 131; Arthur, 
M. 155; Artschwager, E. 400; 
Bailey, I. W. a Ball, R. 426; 
Blakeslee, A Bliss, Cc. 
F. Mary 
314; Buchanan, R. *b, 401; Chamber- 
lain, C. J. 408, 471; Choate, Helen A. 
409; Coulter, J. M. 79, 80, 239, 240, 
336, 402, 408, 471; Cowles, H. C. 466; 
Cribbs, J. E. 289; Crocker, W. 76, 77, 
