TITLES. 
Gen. Sub. 53 
869. [Weldon, W. F. R.] Prof. De Vries on the origin of species. Bio- 
metrika i, pp. 365-374. [Chiefly botanical.] 
870. -. On the ambiguity of Mendel’s categories. Biometrika ii, 
pp. 44-45. [Botanical.] 
871. Werner, R. Ueber einige experimentell erzeugte Zellteilungsano- 
malien. Arch. mikr. Anat. lxi, pp. 85-122, pi. ix. 
Summary, J. R. Micr. Soc. 1902, p. 635. 
872. *Wesenberg-Lund, C. Sur l’existence d’une faune relicte dans le 
lac de Fureso. Bull. Ac. Danemark 1902, pp. 259-303. 
Summary by Zschokke, Zool. Zentrlbl. 1903, pp. 330-333. 
873. *Wettstein, R. von. Uber directe Anpassung. Naturw. Wochenschr. 
xviii, pp. 151-154 [ex Zool. Anz. xxv, Bibl. p. 192]. 
874. *-. Der Neu-Lamarckismus und seine Beziehungen zum Dar- 
winismus. A^ortrag. Jena, 1902, 8vo, 30 pp. [ex Zool. Anz. xxvi, Bibl. 
p. 75], 
875. *-. Der gegenwartige Stand der Rassenfrage. Land. Forstwirth. 
Zeit. xvi, pp. 173-179 [ex Zool. Anz. xxvi, Bibl. p. 200]. 
876. *AVetzel, G. Das A'orkommen von Kernen der Granulosazellen in den 
Ovarialeiern von Pelias berus. A T erh. Physiol. Ges. Berlin vii, pp. 101 
-104. 
Summary, Zool. Zentrlbl. 1903, p. 311. 
877. AVheeler, AV. M. A neglected factor in evolution. Science xv, 
pp. 766-774. 
Adlerz’s views as to numbers, colonies etc. 
878. -. Natural history, ‘cecology 5 or ‘ethology 5 ? T. c. pp. 971-976. 
The same volume has numerous notes on the term oecology or ecology. 
879. AVhite, C. A. The mutation theory of Prof, de Vries. Rep. Smith- 
son. Inst. 1901, pp. 631-640. 
Account of the Vol. published by De A 7 ries last year [Zool. Rec. Gen. 
Subj. (137)]. 
880. AVhite, Taylor. A philological study in Natural History. Tr. N. 
Zealand Inst, xxxiv, p. 135-145. 
[AVhite, Gilbert, Natural History of Selborne, see Grant Allen 
(11) and Kearton (415).] 
881. Whiteaves, J. F. Bibliography of Canadian Zoology for 1900, ex¬ 
clusive of entomology. Tr. R. Soc. Canada 1901, Sect, iv, pp. 87-91. 
882. AVhitman, C. O. A biological farm. For the experimental investi¬ 
gation of heredity, variation and evolution, and for the study of life- 
histories, habits, instinct and intelligence. Biol. Bull, iii, pp. 214-224. 
Also Science xvi, pp. 504-510. 
883. *AViedersheim, R. Vergleichende Anatomie der AVirbelthiere. 5 
vielfach umgearbeitete und stark vermelirte Auflage. Jena, 1902, 
xix + 686 pp. 
Cf. Anat. Anz. xxi, p. 591. Noticed, J. R. Micr. Soc. 1903, p. 28. 
884. AVilder, H. H. Palms and soles. Amer. J. Anat. i, pp. 423-441. 
885. *AVillard, J. T. & Kinsley, A. T. On the effect of oxygen on animal 
life. Tr. Kansas Ac. xvii, pp. 38-41 [ex Zool. Anz. xxvi, Bibl. p. 189]. 
886. Willey, A. Zoological results based on material from New Britain, 
New Guinea, Loyalty Islands and elsewhere. Part vi. Cambridge, 
1902, 4to, pp. xii and 691-830. 
This part completes the work. It includes a personal narrative. 
