Biologia generalis. 42 



non in rapporto assoluto con cromosomi, ma dependano da particolare 

 metabolismo delle cellule germinali, dal quale dipende anche determina- 

 zione del sesso. Modificando artificialmente tale metabolismo (iniezioni — 

 sottocutanee e intraperitoneali — di soluzione concentrata di Lecitina) si puo 

 contrawenire alia legge di Mendel, e riprodurre volontariamente il sesso 

 (Coniglio).] 



12177 Yule, G. Udny. 575 



1907. Mendelism and Biometry. Nature Vol. 76 p. 152. 575.1,.2 



78 Brass, A. 575 



1908. Das Affen-Problem. Professor Ernst Haeckels neueste gefalschte 

 Embryonen-Bilder. Leipzig, Biologischer Verlag. 8°, 42 pp., 4 Taf., 5 figg. 

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79 Brownlee, John. 575 



1908* Germinal Vitality : a Study of the Growth of Nations as an Instance 

 of a hitherto undescribed Factor in Evolution. Proc. E. philos. See. 

 Glasgow Vol. 39 p. 180-204. [Varying birth rate.] 



80 Cook, 0. F. 575 



1908. Evolution without Isolation. Amer. Natural. Vol. 42 p. 72? — 

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81 Cranipton. Heury Edward. 575 



1908. Darwin and after Darwin. The New Biology Outlined. Scient. Amer. 

 Snppl. Vol. 66 p. 122-123. 



82 Dean, Basliford. 575 



1908. When do Variations Attain Selection Value? (Amer. Soc. Zool.) 

 Science N. S. Vol. 27 p. 452. 575.2,.4 



83 Flach, K. 575 



1908. Biologische Plaudereien. Wien. entoni. Zeitg. Jahrg. 27 p. 127— 

 129. 575.2,.4 



12184 Gulick, Jolrn T. 575 



1908. Isolation and Selection in the Evolution of Species. The Need of 

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85 Jordan, David Starr. 575 



1908. The Law of Geminate Species. Amer. Natural. Vol. 42 p. 73—80. 



[Influence of isolation in evolution. Pairs of related species on either 

 side of geographic barrier.] 



86 Le Dantec, F61ix. 575 



1908. La Crise du Transformisme. ReT. sclent. (5) T. 10 p. 609—617. 



87 Maudsley, Henry. 575 



1908. Heredity, Variation and Genius with Essay on Shakspeare : „Tes- 

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 and Prospective. London: John Bale, Sons & Danielsson. S^', 224 pp. 



575.1,.2 



88 Przibram, Hans. 575 



1908. Anwendung elementarer Mathematik auf biologische Probleme. 

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89 Reichenl)ach, Heinricli. 575 



1908. Der Ameisenstaat und die Abstaramungslehre. Ber. Senckenberg. 

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90 Rothe, K. C. 575 



1908. Die tutamentalen Anpassungen und die Descendenztheorien. Zeit- 

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12191 Simon, Richard. 575 



1908. Die Mneme, als erhaltendes Prinzip im Wechsel des Geschehens. 

 2. verb. Aufl. Leipzig. Wilh. Engelmann 8" XV, 391 pp., 2 figg. 



15. L 1909. 



