TITLES. 
Gen. Sub. 13 
186. Driesch, H. Zur Cytologie parthenogenetischer Larven von Stron - 
gyloccntrotus. Arch. Entwickmech. xix, pp. 648-657, 6 text-figg. 
187. . tiber das Mesenchym von unharmonisch zusammengesetzten 
Keimen der Echiniden. T. c. pp. 658-679, 9 text-figg. 
188. . Altes und Neues zur Entwicklungsphysiologie des j ungen 
Asteridenkeimes. Op. cit. xx, pp. 1-20, 26 text-figg. 
189. . Skizzen zur Restitutionslehre. T. c. pp. 21-29, 3 text-figg. 
Drummond, J. [See Hutton & Drummond (340).] 
190. Drygal8KI, E. von. Deutsche Siidpolar-Expedition 1901-1903. Im 
Auftrage des Reichsarntes des Innern. I Band Technik, Geographie. 
Heft, i, A. Stehr. Der Gauss und seine technische Einrichtungen. 
Berlin, 4to, 1905. 
See also VERMES, Michaelsen, and CRUSTACEA, Thiele. 
191. Dublin, L. The history of the germ-cells in Pedicellina americana . 
[Abstract.] Science xxi, p. 380. 
192. . On the nucleoli in the somatic and germ cells of Pedicellina 
americana. Biol. Bull, viii, pp. 347-364. 
Abstract, Zool. Zentrlbl. 1905, p. 570. 
193. Dubois, R. A propos d’heliotropisme animal. C.R. Soc. Biol, lviii, 
p. 299. 
194. . Psychologie et pliysiologie comparee. T. c. pp. 474-476. 
195. — —. Rdponse a M. Giesbrecht sur sa note intitulee “la luminosity 
est-elle un processus vital.” T. c. p. 617-619. 
196. . Sur le mecanisme de la biophotogenfcse, rdponse a M. G. 
Nadson. T. c. p. 1043. 
197. . Sur la question de la tyiygonie. T. c. p. 1059. 
Dunbar, F. J. [See Pearl & Dunbar (534, 535).] 
198. Duncker, G. t)ber Regeneration des Schwanzendes bei Syngna- 
thiden. Arch. Entwickmech. xx, pp. 30-37, pi. i. 
199. Dwight, T. Mutations. Science xxi, pp. 529-532. 
200. Eastman, C. R. Anaximander, earliest precursor of Darwin. Pop. 
Sci. Month, lxvii, pp. 701-706. 
201. . Anaximandre, le premier des precurseurs de Darwin. Rev. 
Scient. (5) T. iii, pp. 769-772. 
202. . Peter Artedi. Science xxii, pp. 378, 379. 
203. [Ehlers, E. Festschrift zur Feier seines siebzigsten Geburtstage.] 
Zeitschr. wiss. Zool. vols. lxxxii, lxxxiii. 
The papers in these two volumes are recorded in the usual manner. 
List of his works by Taschenberg in lxxxiii, pp. 733-741. 
204. Eigenmann, C. H. Divergence and convergence in fishes. Biol. 
Bull, viii, pp. 59-66. 
205. Emery, C. Proposta di una nuova partizione generale dei metazoi. 
Rend. Acc. Bologna viii, pp. 61-75, Zool. Anz. xxx, p. 178. 
206. . fithologie, phylog<$nie et classification. C.R. Congr. Zool. vi, 
pp. 160-174. 
207. *English, D. Beasties courageous. London, 1905, viii -f- 121 pp. 
Review, Nature Ixxiii, p. 177. 
