28 Gen. Sub. 
I. GENERAL SUBJECTS. 
449. *Korjinsky, S. [the late], Heterogenese und Evolution. Zur 
Theorie der Entstehung der Arten. Mem. Ac. St. Petersb. ix, 1899, 
pp. 1-94. 
In Russian and specially botanical. Summary by E. Schultz, Zool. 
Zentrlbl. 1903, pp. 13-15. 
450. Korschelt, E. & Heider, K. Lehrbuch der vergleichenden Ent- 
wicklungsgeschichte der wirbellosen Tiere. Allgemeiner Teil. 1 Lief. 
Jena, 1902. 
Review by 0. Schultze, Biol. Centrbl. xxii, pp. 412-414 ; by Bergh, 
Zool. Centrlbl. 1902, pp. 429-431. 
451. Kostanecki, C. Ueber die Reifung und Befruchtung des Eies von 
Cerebratulus mcirginatus. Bull. Ac. Cracovie 1902, pp. 270-277. 
Abstract by Fick, Zool. Zentrlbl. 1903, p. 472. 
452. -. Sur les anomalies des figures mitotiques lors de la formation 
des globules polaires dans l'oeuf de Cerebratulus marginatus. T. c. 
pp. 278-289. 
Summary, J. R. Micr. Soc. 1902, p. 651. 
453. -. La fecondation Artificielle et la parthenogenfese experimentelle 
sur les ceufs de Mactra. T. c. pp. 363-386. 
Summary by Bergh, Zool. Centrlbl. 1902, pp. 791-793. 
Kowalevsky, Alexander. [See Lankester (467).] 
454. Kraemer, H. On the continuity of protoplasm. P. Amer. Phil. 
Soc. xli, pp. 174-179, pis. xxi, xxii. 
455. Kramer, A. Die Samoa-Inseln. Stuttgart, 1902, 4to, xii + 509 pp. 
[ex Zool. Anz. xxv, Bibl. p. 200]. 
456. Kropotkin, Prince. Mutual aid a factor of evolution. London, 8vo, 
1902, xix 4-348 pp. 
Chaps, i, ii. Mutual aid among animals. 
457. Kukenthal, W. Leitfaden fur das zoologische Praktikum. Jena, 
1902, Zweite Aufl., 8vo, viii + 304 pp., illustr. 
458. -. Ergebnisse einer zoologischen Forschungsreise in den Molukken 
und Borneo. See X. CRUSTACEA, De Man (77). 
459. ^Kulagin, N. Die Entstehung der Geschleehter bei den Bienen. 
Moskau, 1901, 8 pp. 
In Russian ; summary, Zool. Zentrlbl. 1903, p. 165. 
460. Kunstler, J. & Gineste, C. Contribution a l’etude de Pceil compose 
des Arthropodes. C.R. Ass. Franc. 1901, pt. 2, pp. 646-666. 
Chiefly Crustacea. 
461. Kuster, E. Die Mendel’schen Regeln, ihre ursprungliche Fassung 
und ihre modernen Erganzungen. Biol. Centrbl. xxii, pp. 129-136. 
[Lacaze-Duthiers, Henri de. Obituary, see Pruvot, G. (655), 
Boutan (90), and Harmer (327).] 
462. *Laloy, L. Revolution de la vie, avec figs, dans le texte. Paris, 
1902, 18mo, 240 pp., illustr. 
Review, Rev. Scient. xviii, p. 755. 
463. Lammel, R. Ueber periodischen Yariationen in Organismen. Biol. 
Centrbl. xxii, pp. 369-376. 
464. Lankester, E. Ray. Report on the collections of Natural History 
made in the Antarctic regions during the voyage of the “ Southern 
Cross.” London, 1902, ix + 344 pp., liii pis. 
A collection of descriptions by specialists. Review, Rev. Scient. xviii, 
p. 756. 
