Inhalt 



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■«^TANIftAt 



I. Abhandlnngeii 



Seite 

 Koohlcr, 0., Über die Ursachen der Variabilität bei Gatlungsbastarden von 

 Echinideu (mit 7 Figuren und 16 Tabellen im Text) 



I. Teil 1—163 



II. Teil (Schluß) 177—295 



IL Kleinere SUtteilungen 



Sirks, M. J., Waren die Salix-Hybrideu Wicliuras wirklich konstant? . . 164 — 166 



III. Referate 



Bailoy, P. G., 1914, Primary and secondary reduplication series (Schiemann) 298 



Bateson, W., Mendels Vererbungstheorien (Schiemann) 296 



— 1914, Adress of the President of the British Association for the 

 Advancement of Science (Heribert-Nilsson) 296 



ISeruhardt, G. (unter Mitwirkung von Dr. L. Panetli), 1914, Über Varia- 

 bilität [lathogener Bakterien (Schiemann) 299 



Colliu8, G. N., A more accurate method of comparing first-generation maize 



hybrids with their parents (von Graevenitz) 167 



Eisoubcrg', P., 1914, Untersuchungen über die Variabilität der Bakterien 



(Schiemann) 169 



Eugledo«', V. L., 1914, A case of repulsion in wheat (Schiemann) . . . 299 



Foot, Katbariiio and Stroboll, E. C, The Chromosomes of Euschistus 

 variolarius, Euschistus servus and the Hybrids of the F, and Fj 

 Generations (Federley) 173 



— Results of Crossing Euschistus variolarius and Euschistus servus with 

 Reference to the luheritance of an exclusively Male Character (Federley) 174 



Gates, R. R. und Thomas, Nesta, A cytolugical study of Oenothera mut. 



lata und Oe. mut. seniilata in relation to mutation (Heribert-Nilsson) 303 



Harrison, J. W. H. and Doiicaster, L., On Hybrids between Moths of 

 the Geometrid Sub-Family Bistonina', with an Account of the Behaviour 

 of the Chromosomes in Gametogenesis in Lycia (Biston) hirtaria, Ithysia 

 (Nyssia) zonaria and in their Hybrids (Federley) 174 



