IV 
Contents . 
Wormald, H. — Further Studies ot the c Brown Rot ’ Fungi. I. A Shoot-Wilt and Canker of 
Plum Trees caused by Sclerotinia cinerea. With Plates XIII and XIV . 
Matthews, J. R. — The Distribution of Plants in Perthshire in Relation to ‘ Age and Area 
With two Figures in the Text 
Arber, Agnes. — O n the Nature of the ‘ Blade ’ in certain Monocotyledonous Leaves. With 
twenty-nine Figures in the Text 
Singh, Kharak. — D evelopment of Root System of Wheat in Different Kihds of Soils and 
with Different Methods of Watering. With three Figures in the Text 
Knight, R. C. — Further Observations on the Transpiration, Stomata, Leaf Water-content, 
and Wilting of Plants. With three Figures in the Text 
Chandler, M. E. J. — Sequoia Couttsiae, Heer, at Hordle, Hants : A Study of the Characters 
which serve to distinguish Sequoia from Athrotaxis. With five Figures in the Text . 
Salisbury, E. J. — The Soils of Blakeney Point : A Study of Soil Reaction and Succession 
in Relation to the Plant Covering. With Plate XV and five Figures in the Text 
Brown, William. — O n the Preparation and Use of Collodion Osmometers .... 
No. CXLIV, October, 1922. 
Campbell, Douglas H. — The Gametophyte and Embryo of Botrychium simplex, Hitchcock. 
With Plate XVI and ten Figures in the Text . 
Mason, T. G. — Growth and Abscission in Sea Island Cotton. With fourteen Figures in the 
Text 
Priestley, J. H., and Pearsall, W. H. — Growth Studies. III. A ‘ Volumometer ’ Method 
of measuring the Growth of Roots. With one Figure in the Text .... 
Thoday, D. — On the Organization of Growth and Differentiation in the Stem of the Sun- 
flower. With Plate XVII and ten Figures in the Text ...... 
Redfern, Gladys M. — On the Course of Absorption and the Position of Equilibrium in the 
Intake of Dyes by Discs of Plant Tissue. With eight Figures in the Text 
Sinnott, E. W., and Bailey, I. W. — The Significance of the * Foliar Ray’ in the Evolution 
of Herbaceous Angiosperms. With Plates XVIII and XIX and one Figure in the Text 
Woodburn, William Logan. — S permatogenesis in Asterella hemisphaerica, Beauv. With 
Plate XX 
Fry, E. J. — Some Types of Endolithic Limestone Lichens. With Plate XXI and nine 
Figures in the Text . 
Williams, Maud. — O n the Influence of Immersion in certain Electrolytes upon Cells of 
Saxifraga umbrosa. With three Figures in the Text 
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535 
54i 
563 
NOTE. 
Dowson, W. J. — A New Method of Paraffin Infiltration 
• 577 
