VI 
Contents . 
PAGE 
No. LXXII, September, 1902. 
Campbell, D. H. — Studies on the Gametophyte of Selaginella. With 
Plate XIX . 419 
Newcombe, F. C. — The Sensory Zone of Roots. With a Figure in 
the Text 429 
Harvey-Gibson, R. J. — Contributions towards a Knowledge of the 
Anatomy of the Genus Selaginella. Part IV. The Root. 
With Plates XX and XXI 449 
Fritsch, F. E. — The Structure and Development of the young Plants 
in Oedogonium. With three Figures in the Text . . .467 
Freeman, E. M. — Experiments on the Brown Rust of Bromes (Puccinia 
dispersa) 487 
Hope, C. W. — The ‘ Sadd ’ of the Upper Nile : its Botany compared 
with that of similar Obstructions in Bengal and American 
Waters 495 
Brebner, G. — On the Anatomy of Danaea and other Marattiaceae. 
With Plates XXII and XXIII, and Text-Figures 28 and 29 . 517 
Thiselton-Dyer, Sir W. T. — Morphological Notes. VIII. On 
Polycotyledony. With Plates XXIV and XXV, and a Figure 
in the Text 553 
Weiss, F. E.- — The Vascular Branches of Stigmarian Rootlets. With 
Plate XXVI 559 
NOTES. 
Benson, Miss M. — The Fructification of Lyginodendron oldhamium. 
With a Figure in the Text 575 
Fritsch, F. E. — Algological Notes. III. Preliminary Report on the 
Phytoplankton of the Thames . . . . . .576 
No. LXXV, December, 1902. 
NOTES. 
Barnard, J. E., and Macfadyen, A. — On Luminous Bacteria . 587 
Macfadyen, A., and Rowland, S. — On the Suspension of Life at 
Low Temperatures 589 
Dixon, H. H. — Resistance of Seeds to High Temperatures . . 590 
Matthaei, G. L. C. — The Effect of Temperature on Carbon Dioxide 
Assimilation 591 
Willis, J. C. — On the Dorsiventrality of the Podostemaceae, with 
Reference to current Views on Evolution .... 593 
Wright, H. — Foliar Periodicity in Ceylon 594 
Worsdell, W. C. — The Morphology of Sporangial Integuments . 596 
The Nature of the Vascular System of the Stem 
in certain Dicotyledonous Orders ...... 599 
Lomax, J. — On some New Features in Relation to Lyginodendron 
oldhamium 601 
On the Occurrence of the Nodular Concretions (Coal 
Balls) in the Lower Coal Measures 603 
CONTENTS v 
INDEX . vii 
A Sketch of the Life and Labours of Sir William Jackson 
Hooker, by Sir Joseph Dalton Hooker. (With Portrait) ix-ccxx 
Narrative ........... ix 
Appendices xci 
