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CONTENTS. 
No. XXV, March, 1893. 
PAGE 
Seward, A. C. — On the genus Myeloxylon (Brong.). (With Plates I 
and II) 1 
Scott, D. H., and Brebner, G. — On the Secondary Tissues in certain 
Monocotyledons. (With Plates III, IV, and V) . . . 21 
Cormack, B. G. — On a Cambial Development in Equisetum. (With 
Plate VI) 63 
Green, J. R. — On Vegetable Ferments 83 
NOTES. 
Overton, E. — On the Reduction of the Chromosomes in the Nuclei 
of Plants 139 
Groom, P. — Botanical Notes : 
No. 4. On the Velamen of Orchids 143 
No. 5. The Influence of External Conditions on the Form of 
Leaves 152 
Swan, A. — On the resisting Vitality of the Spores of Bacillus Mega- 
terium to the condition of dryness 153 
No. XXVI, June, 1893. 
Campbell, D. H. — On the development of Azolla filiculoides (Lam.). 
(With Plates VII, VIII, and IX) 155 
Baker, J. G. — A Synopsis of the Genera and Species of Museae . 189 
Groom, P. — On Dischidia rafflesiana (Wall.). (With Plate X) . . 223 
Scott, D. H., and Sargant, E. — On the Pitchers of Dischidia raffle- 
siana (Wall.). (With Plates XI and XII, and 3 Woodcuts) 243 
NOTES. 
Brown, H. T., and Morris, G. H. — A contribution to the Chemistry 
and Physiology of Foliage-leaves 271 
Hemsley, W. B., and Zahlbruckner, A.— The genus Tremato- 
carpus 289 
