CONTENTS. 
Jeffrey, Edward C., and Cole, Ruth D. — Experimental Investigations on the Genus 
Drimys. With Plate VII , . . . . 
Takeda, H. — On Carteria Fritschii, sp. nov. With ten Figures in the Text 
Fritsch, F. E., and Takeda, H. — On a Species of Chlamydomonas (C. sphagnicola, 
F. E. Fritsch and Takeda — Isococcus sphagnicolus, F. E. Fritsch). With fourteen 
Figures in the Text ............. 
Acton, Elizabeth. — Studies on Nuclear Division in Desmids. I. Hyalotheca dissiliens 
(Sm.), Breb. With Plate VIII and four Figures in the Text . . . . .’ 
Paine, Sydney G.— On the Supposed Origin of Life in Solutions of Colloidal Silica. 
With Plate IX 
Blackman, V. H., and WELSFORD, E. J. — Studies in the Physiology of Parasitism. 
II. Infection by Botrytis cinerea. With Plate X and two Figures in the Text . 
Brown, William.— Studies in the Physiology of Parasitism. III. On the Relation 
between the ‘Infection Drop’ and the underlying Host Tissue ..... 
Bayliss-Elliott, Jessie S., and Grove, W. B.— Roesleria pallida, Sac. With eleven 
Figures in the Text ............. 
WELSFORD, E. J.— Conjugate Nuclei in the Ascomycetes. With four Figures in the Text 
Rushton, W. — The Development of ‘ Sanio’s Bars ’ in Pinus Inops. With four Figures 
in the Text 
Stiles, Walter. — On the Interpretation of the Results of Water Culture Experiments . 
Willis, J. C. — The Distribution of Species in New Zealand. With a Diagram in the Text 
Smith, Gilbert Morgan.— Cytological Studies in the Protococcales. I. Zoospore 
Formation in Characium Sieboldii, A. Br. With Plate XI and two Figures in the Text 
Smith, Gilbert Morgan. — Cytological Studies in the Protococcales. II. Cell Structure 
and Zoospore Formation in Pediastrum Boryanum (Turp.), Menegh. With Plate XII 
and four Figures in the Text 
NOTE. 
Barratt, Kate. — A Note on an Abnormality in the Stem of Helianthus annuus. 
With three Figures in the Text .......... 
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