CONTENTS. 
PAGE- 
Wormald, H. — The ‘Brown Rot’ Diseases of Fruit-trees, with Special Reference to 
two Biologic Forms of Monilia cinerea, Bon. With Plates IV and V . . . 143 
Bailey, M. A. — Puccinea malvacearum and the Mycoplasm Theory. With two Figures 
in the Text . . . 173 
Barratt, Kate. — A Contribution to our Knowledge of the Vascular System of the Genus 
Equisetum. With Plates VI and VII and twenty-four Figures in the Text . . 201 
Browne, Isabel M. P.— A Third Contribution to, our Knowledge of the Anatomy of the 
Cone and Fertile Stem of Equisetum. With Plates VIII and IX and seven Figures in 
the Text 237 
Carter, Nellie. — Studies on the Chloroplasts of Desmids. I'll. X. The Chloroplasts. . 
of Cosmarium. With Plates X-XIII and two Figures in the Text .... 265 
Bews, J. W. — Plant Succession and Plant Distribution in South Africa . . . . 287 
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