-7 -» o AiislänJische Literatur. 



7 / - 



Metnber of tlic Ulotrichaceae. 159 — 166. — 8/9* Jones, W. N., Oii Ihe Naturc 

 of Fertilizatiou and Sex. 167 — 188. — ■ Stopes, M. C, An Argument for Mor- 

 phology. 198 — 199. — Small, J., The Origin and Development of the Compositae, 

 Chapter IX. 200 — 230. — • 10* Lyle, L., Developmental Forms of Marine Algae. 

 231 — 238. — Hodgetts, W. J., The Conjugation of Zygogonium ericetorum Kütz. 

 238—251. 



Bd. XVIII, 1919. 1/2* Small, J., The Origin and Development of the 

 Compositae, Chapter X. i — 35. — Kidd, F., and West, C, The Influence of 

 Temperature on the Soaking of Seeds. 35 — 39. • — Stiles, W., and Jörgensen, I., 

 On the Relation of Plasmoly.sis to the Shrinkage of Plant Tissu in Salt Solu- 

 tions. 40 — 49. — 3/4* Small, J., The Origin and Development of the Com- 

 positae, Chapter XL 65 — 89. — Curtis, K, M., A Contribution to the Life- 

 History and Cytology of Synchytrium endobioticum (Scliilb.) Percival, the 

 cause of Potato Wart Disease. 90 — 91. — Bristol, B. M., On the Retention of 

 Vitality by Algae from old stored Solls. 92 — 107. — Salmon, C.E., PapaverRhoeas, 

 P. dubium and the Hybrid betvveen them. iii — 117. — Carter, N., Trachelo- 

 monas inconstans, a new Flagellate. 118 — 119. — 5/6* Small, J., The Origin 

 and Development of the Compositae, Chapter XII. 129 — 176. — Carter, N., 

 On the Cytology of two Species of Characiopsis. 177 — 186. — Brooks, F, T., 

 An Account of some Field Observations on the Development of Potato Blight. 

 187 — 200. — 7* Small, J., The Origin and Development of the Compositae, 

 Chapter XIII. 201 — 220; Chapter XIV. 221 — 234. — Kashyap, S. R., The 

 Androecium in Plagiochasma appendiculatum L. et L,. and P. articulatum 

 Kashyap. 235 — 238. — 8* Church, A. H., The Jonic Phase of the Sea. 239 

 — 247. — Kidd, F., Taboratory Experiments on the sprouting of Potatoes in 

 various Gas Mixtures (Nitrogen, Oxygen, and Carbon Dioxide). 248 — 252. — 

 Turrill, W. B., Observations on the Perianth in Ranunculus auricomus and 

 Anemone coronaria. 253 — 256. — Thoday, D., The ,,Osmotic Hypothesis": 

 A Rejoinder. 257 — 259. — gjio* Howarth, W. O., Festuca rubra near Cardiff. 

 A Taxonomic, Morphological and Anatomical Study of Three Sub-Varieties 

 of Festuca rubra I,. subsp. Eu-rubra Hack., var. genuina Hack., grovving near 

 Cardiff, S. Wales. 263 — 286. — Darwin, Fr., A Phaenological Study. 287 — 

 298. 



Bd. XIX, 1920. 1/2* T(ansley), A, G., The Evolution of Plants. i— 10. 



— Browne, I. M. F., Phylogenetic Considerations on the internodal vascular 

 Strains of Equisetum. 11 — 25. — ■ Gates, R. R., Mutations and Evolution. 

 Chapter I and II. 26 — 34. — Ghose, S. L., Campylonema Eahorense, a new 

 Member of Scytonemaceae. 35 — 39. • — Dufrenoy, J., The Occurrence of Acti- 

 nomyces-Like endotrophic Mycorhiza. 40 — 43. — 3/4* Small, J., A Theory 

 of Geotropism: witli some Experiments on the chemical Reversal of geotropic 

 Response in Stern and Root. 49 — 63; i Taf. — • Gates, R. R., Mutations and 

 Evolution, Chapter II contin. and III. 64 — 88. — • Kidd, F., West, C, and Briggs, 

 G. E., What s the Significance of the Efficiency Index of Plant Growth ? 88 

 — 96. — Blackman, V. H., The vSignificance of the Efficiency Index of Plant 

 Growth. 97 — 'loo. — • 5/6* Uphof, J. C. Th., Physiological Anatomy of xero- 

 phytic Selaginellas. loi — 131. — Gates, R. R., Mutations and Evolution, Chap- 

 ter IV and V. 132 — 151. — Bartlett, A. W., Note on an improved Method 

 for;De;nonstrating the Absorption of Oxygen in Respiration. 152. — • 7 ji* 

 Matthews, J. R., Hybridism and Classification in the Genus Rosa. 153 — 171. 



— Gates, R. R., Mutations and Evolution, Chapter VI. 172 — 188. — Priestley, 

 J. H., The Mechanism of Root Pressure. 189 — 200. — West, C, Briggs, G. E., 

 and Kidd, F., Methods and significant Relations in the quantitative Analysis 

 of Plant Growth. 200 — 207. ■ — Preliminary Notes on additional Evidencc 

 for the Hydrion Differentiation Theory of Geotropism: I. Small, J., and Rea, 

 M. W., On the Reversal of Geotropic Curvature in the Steni. 20S — 209; 

 IT. Small, J., and Lynn, M. J,, On the Angle of Balance in Roots, Sterns 



