IV 
Contents. 
No. CVII, July, 1913. 
Prain, Sir David. — T he Mercurialineae and Adenoclineae of South Africa . 
Baker, Sarah M. — Quantitative Experiments on the Effect of Formaldehyde on Living 
Plants. With Plates XXX and XXXI and four Figures in the Text 
Bower, F. O. — Studies in the Phylogeny of the Filicales. III. On Metaxya and certain other 
relatively primitive Ferns. With Plates XXXII-XXXIV and two Figures in the Text 
Hill, Arthur W. — The Floral Mechanism of the Genus Sebaea. With Plate XXXV and 
two Figures in the Text ............ 
Arber, Agnes. — O n the Structure of the Androecium in Parnassia and its bearing on the 
Affinities of the Genus. With Plate XXXVI and four Figures in the Text 
Black, Caroline A. — The Morphology of Riccia Frostii, Aust. With Plates XXXVII and 
XXXVIII 
Holden, Ruth. — C ontributions to the Anatomy of Mesozoic Conifers. No. I. Jurassic 
Coniferous Woods from Yorkshire. With Plates XXXIX and XL . 
Takeda, H. — Morphology of the Bracts in Welwitschia mirabilis. With Plate XLI and two 
Figures in the Text 
Fraser, H. C. I. (Mrs. D. T. Gwynne-Vaughan). — T he Development of the Ascocarp in 
Lachnea cretea. With Plates XLII and XLIII 
Thoday, D. — On the Capillary Eudiometric Apparatus of Bonnier and Mangin for the 
Analysis of Air in investigating the Gaseous Exchanges of Plants. With two Figures 
in the Text 
NOTE. 
Bartlett, A. W. — Note on the Occurrence of an Abnormal Bisporangiate Strobilus of Larix 
europaea, DC. With two Figures in the Text ....... 
No. CVIII, October, 1913. 
Saxton, W. T. — Contributions to the Life-history of Tetraclinis articulata, Masters, with 
some Notes on the Phylogeny of the Cupresso'ideae and Callitroideae. With Plates 
XLIV-XLVI and nine Figures in the Text 
Gluck, H. — Contributions to our Knowledge of the Species of Utricularia of Great Britain 
with Special Regard to the Morphology and Geographical Distribution of Utricularia 
ochroleuca. With Plates XLVII and XLVIII and seven Figures in the Text . 
Harper, Alan G. — Defoliation : its Effects upon the Growth and Structure of the Wood 
of Larix. With Plates XLIX and L and two Figures in the Text .... 
Beer, Rudolf. — S tudies in Spore Development. III. The Premeiotic and Meiotic Nuclear 
Divisions of Equisetum arvense. With Plates LI-LIII 
Graham, Margaret. — S tudies in Nuclear Division of Preissia commutata. With Plates 
LIV and LV 
McAllister, F. — Nuclear Division in Tetraspora lubrica. With Plate LVI 
Thoday, D. — On the Effect of Chloroform on the Respiratory Exchanges of Leaves. With 
fifteen Figures in the Text 
Hiley, W. E. — On the Value of Different Degrees of Centrifugal Force as Geotropic Stimuli. 
With Plates LVII and LVIII and three Figures in the Text 
Bose, J. C. — On Diurnal Variation of Moto-excitability in Mimosa. With seventeen 
Figures in the Text 
Thomas, N. — Notes on Cephaleuros. With Plate LIX . 
Compton, R. H. — An Anatomical Study of Syncotyly and Schizocotyly, With forty-one 
Figures in the Text 
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