INDEX. 
A. ORIGINAL PAPERS AND NOTES. 
PAGE 
Armstrong, E. F., see Armstrong, H. E. 
Armstrong, H. E. and E. F. — The Function of Hormones in regulating Metabolism . . 507 
Bailey, I. W. — The Relation of the Leaf-trace to the Formation of Compound Rays in the 
Lower Dicotyledons. With Plates XV-XVII and one Figure in the Text . . 225 
A Cretaceous Pityoxylon with Marginal Tracheides. With Plate XXVI . 315 
Beer, R. — S.udies in Spore Development. With Plate XIII . . . , . .199 
Bentley, B. H. — An Arrangement for using the Blades of Safety Razors in the Microtome. 
With three Figures in the Text 273 
Berry, E. W. — A Lower Cretaceous Species of Schizaeaceae from Eastern North America. 
With Plate XII and one Figure in the Text . . . . . . .193 
Bower, F. O. — Notes on the Morphology of Ophioglossum (Cheiroglossa) palmatum, L. 
With Plates XXII-XXIV 277 
Brenchley, W. E. — The Weeds of Arable Land in relation to the Soils on which they grow 1 55 
Butler, O. — A Study on Gummosis of Prunus and Citrus, with Observations on Squamosis 
and Exanthema of the Citrus. With Plates VII-X and three Figures in the Text . 107 
Carruthers, D. — Contributions to the Cytology of Helvella crispa, Fries. With Plates 
XVIII and XIX 243 
Dele, E. M. — Transpiration and Behaviour of Stomata in Halophytes. With thirteen 
Figures in the Text 485 
Eames, A. J. — On the Origin of the Herbaceous Type in the Angiosperms. With Plate XIV 215 
Essed, E.— The Panama Disease. I. With Plate XXVI II 343 
The Panama Disease. II. With Plate XXIX 353 
The Surinam Disease. A Condition of Elephantiasis of the Banana caused by 
Ustilaginoidella oedipigera. With Plate XXX 363 
Rice Disease caused by Ustilaginoidella graminicola. With Plate XXXI . . 367 
Horne, A. S. — Preliminary Note on Spongospora Solani, Brunch 272 
Kusano, S. — Preliminary Note on Gastrodia elata and its Mycorhiza 521 
Lee, E. — The Morphology of Leaf-fail. With Plates IV-VI and twenty Figures in the Text 51 
Maslen, A. J. — The Structure of Mesoxylon Sutcliffii (Scott). With Plates XXXIII- 
XXXVI 381 
Oliver, F. W., and Salisbury, E. J. — On the Structure and Affinities of the Palaeozoic 
Seeds of the Conostoma Group. With Plates I— III and thirteen Figures in the Text 1 
Osborn, T. G. B. — A Preliminary Note on the Life-history and Cytology of Spongospora 
sublerranea, Wallroth 271 
Spongospora subterranea, (Wallroth) Johnson. With Plate XXVII . 327 
Prankerd, T. L. — On the Structure and Biology of the Genus Hottonia. With Plates XX 
and XXI and seven Figures in the Text 253 
Salisbury, E. J., see Oliver, F. W. 
Schwartz, E. J. — A New Parasitic Fungus found in the Roots of Grasses. — Preliminary 
Notice 270 
Scott, R. — On Traquairia. With Plates XXXIX and XL and four Figures in the Text . 459 
Sinnott, E. W. — The Evolution of the Filicinean Leaf-trace. With Plate XI and eleven 
Figures in the Text ............ 167 
Spratt, E. R. — Some Observations on the Life-history of Anabaena Cycadeae. With 
Plate XXXII 369 
Stopes, M. C. — A Reply to Prof. Jeffrey’s Article on Yezonia and Cryptomeriopsis . . 269 
