TITLES. 
Gen. Sub. 3 
18. Ballovvitz, E. Die Doppelspermatozoen der Dyticiden. Zeitschr. 
wiss. Zool. lx, pp. 458-499, 5 pis. 
19. Barbour, A. H. Freeland. Some aspects of Heredity. Edin. 
Med. Journ. 1895, pp. 602-611. 
20. Barfurth, D. Regeneration and Involution. Anat. Hefte. Ergebn. 
iv, pp. 458-501. 
21. . Versuche fiber die parthenogenetische Furchung des Hfihner- 
eios. -Arch. Entwickmech. ii, pp. 303-351, 2 pis. 
22. Barker, C. W. Notes on seasonal dimorphism of Rhopaloccra in 
Natal. Tr. ent. Soc. London, 1895, pp. 413-428. 
23. Bateson, W. On the colour-variations of a Beetle of the family 
Chrysomdidic , statistically examined. P. Zool. Soc. London, 1895, 
pp. 850-860. 
24. Bather, F. A. The Swedish Marine Zoological Station. Nat. Sci. 
vii, pp. 407-415, 1 pi., 2 figg. 
25. Baur, G. The differentiation of species on the Galapagos Islands, 
and the origin of the Group. Lect. iv. Biol. Lect. Wood’s Holl, 
pp. 67-78. 
26. Beard, J. On the phenomena of reproduction in Animals and Plants, 
on antithetic alternation of generations, aud on the conjugation of 
the Infusoria. (1) On antithetic alternation of generations ; (2) The 
reducing division of Metazoan reproduction, by J. Beard & J. A. 
Murray ; (3) The conjugation of the Infusoria and the meaning of 
the processes involved. Anat. Anz. xi, pp. 234-255, 5 figg. 
27. . On the phenomena of reproduction in Animals and Plants. 
Antithetic alternation of generations. Ann. Bot. ix, pp. 441-447. 
28. . On the phenomena of reproduction in Animals and Plants. 
The conjugation of the Infusoria and the meaning of the processes 
involved. T. c. pp. 456-468, 5 figg. 
29. Beard, J., & Murray, J. A. On the phenomena of reproduction 
in Animals and Plants. Reducing division in Metazoan reproduction. 
T. c. pp. 448-455. 
29a. Beauregard, H. Georges Pouchet (1833-1894). J. Anat. Physiol, 
xxxi, pp. 1-37. 
30. c Bechterew, W. Ueber den Einfluss des Hungerns auf die neuge- 
borenen Tiere, insbesondere auf das Gewicht und die Entwicklung 
des Gehirns. Neurol. Centralbl. xiv, pp. 810-817. 
31. Beddard, F. E. A text-book of Zoogeography. Cambridge : 8vo, 
viii & 246 pp., 5 maps. 
32. Beiir, H. II. Changes in fauna and flora of California. — On the 
power of adaptation in insects. P. Calif. Ac. v, pp. 368-376. 
33. Bell, F. Jeffrey. On the variations observed in large masses of 
Turbinaria . J. R. Micr. Soc. 1895, pp. 148 & 149, 2 pis. 
