INDEX OF AUTHORS 
Christy, Miller. Primula vulgaris var. caulescens 
Clements, Frederic E. Content, Methods and Measurements in 
the Teaching of Elementary Botany .... 
- The Ecological Method in Teaching Botany 
Cockayne, L. Hybridism in the New Zealand Flora 
Crow, W. B. The Taxonomy and Variation of the Genus Micro¬ 
cystis in Ceylon (i Plate) ..... 
Ewing, J., see Priestley 
Ghose, S. L. An Example of Leaf-enation in Allium ursinum L. 
(io Text-figs.) ....... 
Griffiths, B. Millard. Tetraedroides spetsbergensis gen. et sp. 
nov., a New Alga from Spitzbergen (Results of the Oxford 
University Expedition to Spitzbergen, No. 28) (1 Plate) 
Hunter, C. and Rich, E. M. An Apparatus for the Measurement 
of Stem Elongation (Laboratory Note) . . . . 
Lewis, Francis J. and Tuttle, Gwynethe M. On the Phe¬ 
nomena attending Seasonal Changes in the Organisation in Leaf 
Cells of Picea canadensis (Mill.) B.S.P. 
Newcombe, F. C. The Supposed Reversal of Geotropic Response 
Pearsall, W. H. and Priestley, J. FI. Meristematic Tissues and 
Protein Iso-electric Points .... 
Priestley, J. H., see Pearsall 
Priestley, J. H. and Ewing, J. Etiolation (Physiological Studies 
in Plant Anatomy, VI) 
Rich, E. M., see Hunter 
Saunders, Edith R. The Bractless Inflorescence of the Cruciferas 
(1 Plate, 9 Text-figs.) ...... 
Snow, R. An Apocarpic Plant of the Red Campion {Lychnis 
dioica L.) (4 Text-figs.) ...... 
Soal, C. W. Variation as an Organic Function . 
PAGE 
233 
I 9 I 
98 
105 
59 
49 
69 
44 
225 
281 
185 
30 
150 
156 
161 
