INDEX OF SUBJECTS 
Abietineae, see Endodermis in the Leaves of the 
Algae, Freshwater, see Periodicity 
Anatomy, Physiological Studies in Plant—J. H. Priestley 
I. Introduction ..... 
II. The Physiological Relation of the Surrounding Tissue 
to the Xylem and its Contents—(with Dorothy 
Armstead) ..... 
III. The Structure of the Endodermis in Relation to its 
Function (5 Text-figs.)—(with Edith E. North) 
IV. The Water Relations of the Plant Growing Point 
(2 Text-figs.)—(with R. M. Tupper-Carey) 
V. Causal Factors in Cork Formation—(with Lettice M. 
Woffenden) ..... 
Autumnal or Second Flowerings of Plants, Records of—Sir 
Francis Darwin and A. Shrubbs .... 
Bench Light, A cheap (Laboratory Note) (1 Text-fig.)—Sydney 
J. Mangham ....... 
Cell Wall, The, see Permeability 
Commutator, see Multiple Switch 
Cork Formation, Causal Factors in—(Physiological Studies in 
Plant Anatomy, V)—J. H. Priestley and Lettice M. Woffenden 
Cyanophyceae from the point of view of their evolution, A critical 
study of certain unicellular—-W. B. Crow (1 Text-fig.) 
Endodermis in Relation to its Function, The Structure of the 
(5 Text-figs.)—(Physiological Studies in Plant Anatomy, III)— 
J. H. Priestley and Edith E. North .... 
Endodermis in the Leaves of the Abietineae, The Structure and 
Function of the (12 Text-figs.)—Isabel Soar . 
Excretion of Water by Plant Cells, see Permeability 
Growing point, The Water Relations of the Plant (2 Text-figs.)— 
(Physiological Studies in Plant Anatomy, IV)—J. H. Priestley 
and R. M. Tupper-Carey ..... 
Hybrid, see Primula elatior x vulgaris 
Intake of Water by Plant Cells, see Permeability 
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