CONTENTS. 
PAGE 
Holden, the late Ruth. — O n the Anatomy of Two Palaeozoic Stems from India. With 
Plates XVI I-XX . 315 
Willis, J. C.-— The Distribution of the Plants of the Outlying Islands of New Zealand. 
With one Diagram in the Text . . . ...... 327 
Willis, J. C. — Further Evidence for Age and Area ; its Applicability to the Ferns, &c. . 335 
Knight, R. C. — ‘ Relative Transpiration ’ as a Measure of the Intrinsic Transpiring Power 
of the Plant ............... 351 
West, Cyril. — A Contribution to the Study of the Marattiaceae. With Plates XXI and 
XXII and thirty-three Figures in the Text . . . . . . . . . 361 
Stiles, Walter, and Jorgensen, Ingvar. — S tudies in Permeability. V. The Swelling 
of Plant Tissue in Water and its Relation to Temperature and various Dissolved 
Substances. With ten Tables and nine Figures in the Text 415 
Potter, M. C. — Note on a Method of demonstrating the Heat of Respiration. With 
one Figure in the Text ............. 435 
Kashyap, Shiv Ram.— N otes on Equisetum debile, Roxb. With three Figures in the Text 439 
Brenchley, Winifred E.— Organic Plant Poisons. I. Hydrocyanic Acid. With three 
Figures in the Text 447 
Kidd, Franklin, and West, Cyril. — T he Controlling Influence of Carbon Dioxide. 
IV. On the Production of Secondary Dormancy in Seeds of Brassica alba following 
Treatment with Carbon Dioxide, and the Relation of this Phenomenon to the Question 
of Stimuli in Growth Processes. With Plate XXIII and five Figures in the Text . 457 
Brown, William. — Studies in the Physiology of Parasitism. IV. On the Distribution 
of Cytase in Cultures of Botrytis cinerea 489 
Maybrook, A. C.— On the Haustoria of Pedicularis vulgaris, Tournef. With five Figures 
in the Text ' . 499 
Piercy, Alma. — T he Structure and Mode of Life of a Form of Hormidium flaccidum, 
A. Braun. With three Tables and six Figures in the Text 5 J 3 
Note . — The plate omitted from the Obituary Notice of H. H. W. Pearson in No. CXXII is 
inserted loose in this number. 
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