Neue Litteratur. 227 



L. (Diss. Amsterdam. 1910. 8°. 162 pp. 3 pl. Mit deutsch. Res.) 

 Wagner, A. 1910. Die Bedeutung des Zellkerns. (Jahrb. Mikroskopie 

 1910. p. 14-28.) 



V. Varietäten, Descendenz, Hybriden. 



Andrews, F. M. 1910. Twin hybrids (Laeta and Velutina) and 

 their anatomical distinctions. (Bot. Gaz. L. 3. p. 193—201.) 



Buchanan, A. M. 1910. Modern Biology and the Theory of Evolu- 

 tion. (London, 1910. 8°. ill.) 



Canestrini, A. 1910. Variazioni e mutazioni nel regno vegetale. 

 (Atti Acc. Agiati. 3. XVI. p. 75—93.) 



Clark, Ch. F. 1910. Variation and Correlation in Timothy. (Bull. 

 Cornell Univ. agric. Expt. Stat. Ithaca, N. Y. 1910. 279. p. 301 — 

 350. ill.) [A study of correlation in timothy, Phleum pratense L.; 

 3505 plants were observed for three years; "There was found to 

 be practically no correlation of the characters studied statistically 

 except in the case of weight and height". Data tabulated fully in 

 numerous tables and curves. — W. T. Swingle.] 



Cozzi, C. 1910. Sulla variabilitä individuale di Dianthus Carthu- 

 sianorum L. (Atti Soc. ital. Sc. nat. XLVIII. p. 329—333.) 



Hart, D. B. 1910. Phases of Evolution and Heredity. (London, 

 1910. 8°.) 



Johansson, K. 1910. Iakttagelser öfver hybridiserande Centaurea 

 arter. (Bot. Not. 1910. 4. p. 177—181.) 



Klebs, G. 1910. Alterations in the development and forms of plants 

 as a result of environment. (Proc. r. Soc. London. B. LXXXII. 

 559. p. 547-558.) 



Nusbaum, J. 1910. Idea ewolycyi w biologii. (Lemberg, H. Alten- 

 berg. 1910. 8°. 560 pp. Abb. u. Port. Polnisch.) 



Nusbaum, J. 1910. Zur Beurteilung und Geschichte des Neola- 

 marckismus. (Bio!. Cbl. XXX. 18. p. 599-611.) 



Reid, G. A. 1910. The Laws of Heredity. (London, 1910. 8°. 560 pp.) 



Vilmorin, Ph. de 1910. Recherches sur l'heredite mendelienne. 

 (C. R. Ac. Sc. Paris. CLL 11. p. 548—551.) 



Weiss, F. E. 1910. Note on the Variability in the Colour of the 

 Flowers of a Tropaeolum Hybrid. (Mem. lit. Soc. Manchester 

 1910. 5 pp. 1 pl.) 



VI. Physiologie. 



Cf. II. Pizon. 



Acqua, C. 1910. Risultati di ricerche intorno all'azione del radio 



sui vegetali. Sunto. (Atti Soc. ital. Progr. Sc. III. p. 535.) 

 Angelis d'Ossat, G. de 1910. Azione caolinizzante delle radici sulle 



roccie laviche romane. (Rendic. r. Acc. Lincei, Roma. XIX. p. 154—157.) 

 Appleman, Ch. O. 1910. Some observations on catalase. (Bot. Gaz. 



L. 3. p. 182—192. 1 fig.) 

 Eikenberry, W. L. 1910. An atmograph. (Bot. Gaz. L. 3. p. 214— 



218. 4 fig.) 

 Faure, G. 1910. Liquido conservatore per frammenti di organi e 



per piccoli organismi interi. (Ann. di Bot. VIII. p. 63—64.) 

 Ferrari, E. 19l0. II calcio nel terreno e nelle piante. (Napoli, tip. 



Ferrante, 1910.) 

 Gassner, G. 1910. Ueber Keimungsbedingungen einiger Südameri- 

 kanischer Gramineensamen. I. Mitt. (Ber. deutsch, bot. Ges. XXVIII. 



7. p. 350-364.) 

 Harden, A. and R. V. Norris. 1910. The fermentation of galactose 



