INDEX 
A. ORIGINAL PAPERS AND NOTES. 
PAGE 
Arber, Agnes. — O n the Law of Age and Area, in Relation to the Extinction of Species . 21 1 
Studies on Intrafascicular Cambium in Monocotyledons (III and IV). With 
seven Figures in the Text -459 
Arber, the late E. A. Newell.— R emarks on the Organization of the Cones of Williamsonia 
gigas (L. and H.). With five Figures in the Text 173 
Blackman, V. H. — The Compound Interest Law and Plant Growth 353 
Bracher, Rose. — O bservations on Euglena deses. With nine Figures in the Text . . 93 
Carter, Nellie. — S tudies on the Chloroplasts of Desmids. I. With Plates XIV-XVIII . 215 
Studies on the Chloroplasts of Desmids. II. With Plates XIX and XX 
and one Figure in the Text 295 
The Cytology of the Ciadophoraceae. With Plate XXVII and two 
Figures in the Text 467 
Cleland, Ralph E. — The Cytology and Life-history of Nemalion multifidum, Ag. With 
Plates XXII-XXIV and three Figures in the Text ....... 323 
Dey, P. K. — Studies in the Physiology of Parasitism. V. Infection by Colletotrichum Linde- 
muthianum. With Plate XXI 305 
Digby, L. — On the Archesporial and Meiotic Mitoses of Osmunda. With Plates VIII-XII 
and thirty-five Figures in the Text • 1 35 
Groom, Percy. — T he Wood of Tetracentron, Trochodendron, Drimys, and other Types . 133 
Haines, F. M. — A New Auxanometer. With two Figures in the Text . . . . .181 
Holmes, M. G. — Observations on the Anatomy of Ash- wood with Reference to Water-conduc- 
tivity. With seven Figures in the Text 255 
Obituary : 
William Gibson Farlow xv-xvi 
Osborn, T. G. B. — Some Observations on the Tuber of Phylloglossum. With Plate XXVIII 
and forty-three Figures in the Text 485 
Petch, T. — Mocharas and the Genus Haematomyces. With two Figures in the Text . . 405 
Phillips, R„ W. — Note on the Duration of the Prothallia of Lastraea Filix-mas, Presl. . . 265 
Sahni, B. — On an Australian Specimen of Clepsidropsis. With Plate IV and two Figures in 
the Text 81 
Salisbury, E. J. — Variation in Eranthis hyemalis, Ficaria verna, and other Members of the 
Ranunculaceae, with Special Reference to Trimery and the Origin of the Perianth. 
W T ith twenty Figures in the Text and Tables 1-X 47 
Scott, D. H. — On the Fertile Shoots of Mesoxylon and an Allied Genus. With Plates I— III 
and three Figures in the Text 1 
Smith, A. Malins. — T he Temperature-coefficient of Photosynthesis: a Reply to Criticism. 
With two Figures in the Text . . . . . . . . . . . 5 1 7 
Spratt, Ethel R.- — A Comparative Account of the Root-nodules of the Leguminosae: With 
Plate XIII and five Figures in the Text 189 
Steil, W. N. — A Study of Apogamy in Nephrodium hirtipes, Hk. With Plates V-VII . 109 
Tuttle, Gwynethe M. — Induced Changes in Reserve Materials in Evergreen Herbaceous 
Leaves. With seven Figures in the Text . . . . . . . . .201 
Whitby, Stafford, — V ariation in Hevea brasiliensis. With one Diagram in the Text . 313 
Willis, J. C. — The Flora of Stewart Island (New Zealand) : a Study in Taxonomic Distri- 
bution. With two Maps and fourteen Tables in the Text . 
23 
