CONTENTS. 
PAGE 
Tans ley, A. G. and Chick, Miss E.— Notes on the Conducting 
Tissue-System in Bryophyta. With Plates I and II i 
Arber, E. A. N.— On the Effect of Salts on the Assimilation of Carbon 
Dioxide in Ulva latissima, L. . . . . . 39 
Gwynne-Vaughan, D. T.— Observations on the Anatomy of Soleno- 
stelic Ferns. I. Loxsoma. With Plate III ... 71 
Watson, W. — Germination of Seeds of Bertholletia excelsa. With 
Plates IV and V 99 
Campbell, D. H.— The Embryo-Sac of Peperomia. With Plate VI 103 
Biffen, R. H.— On the Biology of Bulgaria polymorpha, Wett. With 
Plate VII. . 1 1 9 
Jeffrey, E. C.— On Infranodal Organs inCalamites and Dicotyledons. 
With Plates VIII and IX 135 
Davis, B. M.— Nuclear Studies on Pellia. W T ith Plates X and XI . 147 
NOTES. 
Vines, S. H. — On Leptomin 181 
Hill, T. G. — On the Anatomy of the Stem of Dalbergia paniculata, 
Roxb 183 
Burkill, I. H. — The Ovary of Parnassia palustris, Linn. With 
a Figure in the Text 186 
Blackman, F. F. — The Primitive Algae and the Flagellata . . 192 
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