Flower of Silene inaritimn, Polymorphism in the (Plate 1 Page 
and a Text-fig.)—E. J. Salisbury ... ... ... 7 
Fossil Prothalli from the Lower Coal Measures, Two 
(Plates V and VI and 2 Text-figs.) — R. C. McLean 305 
Genetic Factors, Inter-Relations of [Notes on Recent 
Literature]—R. P. G(regory) ... ... ... 64 
Glossopteris Flora, The [No^es on Recent Literature]— 
A. C. S e w aid... ... ... ... ... ... 33 
Grasses, Note on Some Nuclei found in (with Text-fig.)— 
Jessie M. Bayliss ... ... ... ... ... 128 
Heredity, Four Books on [Notes on Recent Literature] 
—R. P. G(regory) ... ... ... ... ... 68 
Hieracium , Experiments on the Origin of the Species in 
Genus (Apogamy and Hybridism)—C. H. Ostenfeld 347 
Hooker, Sir Joseph, and Charles Darwin : The History of 
a Forty Years’ Friendship—A. C. Seward ... ... 195 
Hybridism. See Hieracium. 
Hydrogen Bacteria [Notes on Recent Literature]—D. 
T(hoday) ... ... ... ... ... ... 63 
I 
Inferae. Part I: Rubiales [Floral Evolution]—H. F. 
Wernham 217 
Part II : Campanulas [Floral Evolution]... ... 290 
Influence of the Structure of the Adult Plant upon the 
Seedling, The (9 Text-figs and 3 Diagrams)—T. G. 
Hill and E. de Fraine... ... ... ... ... 319 
International Phytogeographical Excursion in the British 
Isles, The 
IV.—Impressions of the Foreign Members 
of the Party—Henry C. Cowles ... 25 
Jean Massart ... ... 26 
C. A. M. Lindman ... 27 
V.—The Killarney Woods—E. A. Riibel ... 54 
VI.—Some Remarks on the Floristic Results 
of the Excursion—C. H. Ostenfeld ... 114 
VII,—Pflanzengeographische Eindriicke auf den 
Britischen Inseln—P. Graebner ... 170 
VIII.—Some Impressions and Reflections—F. E. 
Clements ... ... ... ... ... 177 
IX.—The Flora of Great Britain compared 
with that of Central Europe—Oscar 
Drude ... ... ... ... ... 236 
X.—Einige Vergleiche zwischen Britischer 
und Schweizerische Vegetation—C. 
Schroter ... ... ... ... ... 277 
