ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 69 



Jons son, H. — A contribution to the knowledge of the Marine Algse of Jan Mayen. 

 [A list of fifteen species collected by Kruuse in June 1900.] 



Bat. Tidsskr., xxvi. (1905) pp. 319-20. 



Kbaskovits, G. — Ein Beitrag zur Kenntniss der Zelltheilungsvorgange bei (Edo- 

 gonium. (Contribution to a knowledge of the cell-division in CEdogonium.) 



SB. ft. ft. Akad. Wiss. Wien Math.-nat. Kl., cxiv. (1905) 

 pp. 237-74 (11 figs, in text, 3 tables). 

 Krause, F. — Das Phytoplankton des Drewenzsees in Ostprenssen. (The phyto- 

 plankton of the Drewenz Lake in East Prussia.) 



* Arch. Hydrobiol. u. Plankton, i. (1905). 



Kuester, E. — TJeber den Einflnss von Losungen verschiedener Konzentration anf 

 die Orientirungs bewegungen der chromatophoren. (On the influence of solu- 

 tions of different concentration on the polarity of chromatophores.) 



Ber. Deutsch. Bot. Ges., xxiii. (1905) pp. 254-6. 



Laing, R. M. — Eevised List of New Zealand Seaweeds. Appendix I. 



[The first addition to the author's previously published list. Two new 

 species are described — Ceramium L.aingii and Bostrychia similis.] 



Trans, and Proc. N. Zeal. Inst, for 1904, 

 xxxvii. (1905) pp. 380-4. 



Lemmermann, E. — Brandenburgische Algen. III. Nene formen. (Brandenburg 

 algse. New forms.) 



[Description of 3 new species and 2 varieties, with critical notes on other 

 species.] Ploner. Forscli. Ber., xii. (1905) pp. 145-53 (pi.). 



Livingston, B. E. — Physiological Properties of Bog-water. 



[Poisonous effect on Stigeoclonium.'] 



Bot. Gazette, xxxix. (1905) pp. 348-55 (fig.). 



Lutkemuller, J. — Zur Kenntnis der Gattung Penium. (Contributions to a 

 knowledge of the genus Penium.) 



Verh. k. k. Zool. Bot. Ges. Wien, lv. (1905) p. 332. 

 M ann, A. — Diatoms, the Jewels of the Plant World. 



Smithsonian Misc. Coll., in. (1905) pp. 50-8 (4 pis.). 

 M a z z a, A. — Saggio di Algologia oceanica. (An essay in the study of oceanic 

 algse.) 



[A continuation ofJto work, which is intended to simplify for students the 

 task of identif3^P marine algae. Many interesting notes are appended 

 to the species'"jjames. The genus Chantransia is concluded, and 

 Nemalion, Hel^mithocladia, and Liagora are dealt with.] 



40T Nuov. Notar., xvi. (1905) pp. 129-41. 



Migula, W. — Thome's Flora von Deutschland, Oesterreich und der Schweiz. Kryp- 

 togamen-Flora. Algen. (Thome's flora of Germariy, Austria, and Switzerland. 

 Cryptogamic flora. Algse.) 



[Continuation. Rivularia — Cocconeis.~\ 



Gera : Zezschwitz, 1905, lief. 23, 24, pp. 145-208 (10 pis.). 



Moore, G. T., & Kellerman, Karl F. — Copperas anAlgicide and Disinfectant 

 in water supplies. 



[The authors have successfully treated over fifty reservoirs for the removal 

 of algae, and they find that much less copper is required to eradicate 

 algae from reservoirs than would be necessary to destroy algae under 

 laboratory conditions.] U.S. Dep. Agric. Bureau Plant Industry, 



Bulletin 76 (1905) 55 pp. 

 Paulsen, O. — On some Peridineae and Plankton-Diatoms. 



[During the voyage of the ' Thor ' to the Faeroes and Iceland in the 

 summer of 1904, the author collected plankton. In giving his more 

 important results, he describes and figures three new species of Peri- 

 dinium, and discusses P. Steinii Jiirgs. and Ghcstoccras gracile Schiitt 

 and C. simplex Ostf., giving new figures of them. The last-named 

 species has the surprising but not unprecedented distribution — Caspian 

 and Iceland.] Med. Kommiss. f. Havundersog Kobenhavn 



Plankt., i. 3 (1905) 7 pp. 



