TITLES. 
Gen. Sub. 45 
794. [Verworn, M.] Die sogenannte Hypnose der Thiere. Proc. 
Internat. Physiol. Congr., in Supplement to Yol. xxm of J. Physiol., 
pp. 53 & 54. 
794a. *Vignoli, T. Del massimo problema della biologia. Rev. Sci. Biol. 
[Como] i, pp. 32-46. 
794b. *-. Cenni sopra un trattato di geobiologia. T. c. 252-260. 
795. Vignon, P. Critique de la theorie vesiculaire de la secretion. Arch. 
Zool. exp. vii, Notes et Revue xvii-xxv, 2 figg. 
796. ViRfi, A: Le monde souterrain. Cavernes et animaux aveugles de 
France. Rev. Scient. xi, pp. 225-231. 
797. -. La Faune souterraine de France. These. 8vo, Paris, 
159 pp. 
798. Voigt, W. Klinstlich hervorgerufene Neubildung von Korpertheilen 
bei Strudelwiirmern. SB. niederrhein. Ges. 1899, pp. 25-31, 3 figg. 
799. Voris, J. H. Material for the study of the variation of Pimephales 
notatus (Rafinesque) in Turkey Lake and in Shoe and Tippecanoe 
Lakes. Proc. Indiana Ac. 1898, pp. 233-239. 
800. Vries, Hugo De. Alimentation et selection. Cinquantenaire Soc. 
Biol. 1899, pp. 17-38. 
801. *Waagen, W. Das Schopfungsplaii. Munster i. W. 8vo, pp. 36. 
802. Wagner, A. Studien und Skizzen aus Naturwissenschaft und 
Philosophie. I. Ueber wissenschaftliches Denken und fiber populare 
Wissenschaft. 8vo, Berlin, 79 pp. 
Wagner, J. N. [See Schimkewitsch, W. (694).] 
803. Waldeyer, W. Ivittsubstanz und Grundsubstanz. Epithel und 
Endothel. Cinquantenaire Soc. Biol. 1899, pp. 531-543. 
804. Wallace, A. R. The utility of specific characters. Nature lix, 
p. 246. 
805. Wallace, W. Reasons for rejecting physico-chemical theories of 
life. P. Phil. Soc. Glasgow xxx, pp. 256-266. 
806. Wallengren, Hs. Ueber die totale Konjugation bei Vorticellina. 
Biol. Centrbl. xix, pp. 153-161, 3 figg. 
807. ^Walter, E. Das Plankton und die praktisch verwendbaren 
Methoden der quantitativen Untersuchung der Fischnahrung. 8vo, 
Neudamm, 44 pp., 17 figg. 
808. Wandel, C. F. Report of the voyage, pp. 1-20, 1 map, [in Den 
Danske Ingolf-Expedition. The Danish Ingolf-Expedition]. Bd. i, 
Part I. 
For contents of other volumes see. separate Records. 
809. Ward, H. B. Freshwater investigations during the last five years. 
P. Amer. Micr. Soc. xx, pp. 261-336. Stud. Lab. Nebraska 1899, 
Nos. 30 & 31. 
810. -. The freshwater biological stations of the world. Science ix, 
pp. 497-508. 
811. -. Report of the Zoologist. Studies Lab. Univ. Nebraska. No. 
32, 1899, pp. 321-338. 
Towards a regional faunistic survey. 
