411 



Pfeffer, G., Über die Umwandlung der Arten auf Grund des Überlebens eines ver- 

 schiedenen Durchschnitts etc. und . . ein Vorgang functioneller Selbstgestaltung. 

 Ausz. von H. F. Ziegler. in: Zool. Centralbl. 1. Jhg. No. 16. p. 626-629. 



Verhdlgn. deutsch. Zool. Ges. — u. Verhdlgn. naturw. Ver. Hamburg. — v. 

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 Wallace, A. K. , Rev. George Henslow on Natural Selection, in: Natural 

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Against the remark, that »natural variation is always definite«. 

 Wolff, Grust. , Bemerkungen zum Darwinismus mit einem experimentellen 

 Beitrag zur Physiologie der Entwicklung, in: Biol. Centralbl. 14. Bd. 

 No. 17. p. 609—620. 



Die zweckmäßige Anpassung macht den Organismus zum Organismus. Der 

 Darwinismus behauptet, daß es Organismen gab, denen diese Anpassung fehlte. 

 Ounningham, J. T., The Logic of Weismannism. in: Nature, Vol. 50. No. 1300. 

 p. 523—524. 



Food of worker larvae and the queen larvae, differing in quality, not in quantity. 

 Haacke, W. , Haacke's Theory of Gemmaria. Abstr. in : Journ. R. Micr.Soc. Lon- 

 don, 1894. P. 5. p. 551. 



Biol. Centralbl. — v. supra p. 299. 

 Bernard, H. M., Has the Case for Direct Organic Adaptation been fully stated? 

 in: Nature, Vol. 50. No. 1301. p. 546—547. 



Lamarckism and Darwinism are to be united. The force of Heredity has been 

 overstated, the power of immediate vital response of delicately balanced organisms 

 to every slight change in the environment has been very much understated. 

 Plateau, F., False Mimicry. Abstr, in: Journ. R. Micr. Soc. London, 1894. P.5. 

 p. 552. 



Biol. Centralbl. — v. supra p. 300. 

 Hill, Leon., The Inheritance of acquired characters, in: Nature, Vol. 50. No. 1304. 

 p. 617. 



Guinea pig with drooping eyelid after operation. 

 Packard, Alph. S., On the Inheritance of acquired characters in Animals with 

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I. The Physical Basis of Heredity. II. Heredity of Characters acquired during 

 the Life-time of the Individual. III. Inheritance at Corresponding Periods of 

 Life. IV. Homochronous Heredity in Insects with a Hypermetamorphosis. V. On 

 the Inheritance of Acquired Characters in Lepidoptera. VI. The Adequacy of 

 Neolamarckism. 



8. Faunen. 



The Distribution of Animals. Notes from the British Association, in: 

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Gratacap, L. P., The numerial intensity of Faunas, in: Amer. Naturalist, 

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A species reaches its maximum by favorable environment and high vitality. 

 The decrease and extinction is brought about by unfavorable environment and 

 high vitality, followed by a sinking of the vitality — in this case the species will 

 leave modified, specific ofi'shoots, — or by unfavorable environment and low vi- 

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Gregory, J. W. , On the factors that appear to have influenced zoological di- 

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 Instability of the lake region. Glaciers of Mount Kenia. 



Antuschewitsch, J. , KpaTKiä OTyeTi, o ß^'ea.TejLhwoerii Komhccìh (a-ih hscji'é- 

 ÄOBanifl *ayHH Mockobckoh ryöepHin) sa 1893 ro^x [Kurzer Bericht über 

 die Thätigkeit der Commission zur Erforschung der Moskauer Fauna i, J. 



