ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 217 



Gerasbimow, J. J. — TJeber die Grosse des Zellkerns. (On the size of the nucleus.} 



[Observations made on Spironyra.'] 



Beih. Bot. Centrdlbl., xviii. Abt. 1 (1904) 



pp. 45-118 (2 pis.). 



,, „ TJeber die kernlosen und die einen Uberfluss an Kernmasse 



enthaltenden Zellen bei Zygnema. (On the non-nncleated 



cells and thosj containing an excess of nuclear substance 



in Zygnema.) Hedwigia, xliv. (191)6) pp. 50-6. 



Harding, H.A..& F. C. Stewart — Vitality of Pseudomonas campestris (Pam.> 

 Smith on Cabbage Seed. Science, ii. (1904) pp. 55-6. 



Hardt. A. D.— The Fresh-water Algae of Victoria. 



[A more or less general and popular account of the group.] 



Victorian Naturalist, xxi. (1904) pp. 81-7. 



Kohl, F. G.— Zur Frage nach der Organisation der Cyanophyceenzelle undnach der 

 mitotischen Theilung ihres Kernes. (On the question of the organisation of the 

 cell in Cyanophycex and the mitotic division of its nucleus.] 



Beih. Bot. Centralbl, xviii, Abt. 1 (1904) pp. 1-8. 



Kraskowits, G. — TJeber Algenvegetation an Norwegens West-Kiiste bei Bergen. 

 (On the algal vegetation of the West Coast of Norway near Bergen.) 



Mitt. Naturw. Ver. Univ. Wien, ii. (1904). 



Lloyd, F. E. — Development of the Egg in Vaucheria. 



Plant World, vii. (1904) pp. 311-12. 



Migula, W., & Schmidle, W. — Algae Hochreutinerianae Oranenses. (Algse col- 

 lected by Hochreutiner in Oran in Algeria.) 



Hochreutiner's Le Sud Oranais, Geneva, 1904, pp. 248-9. 



Mi quel, P. — Du Noyau chez les Diatomees. (On the nucleus of Diatoms.) 



Micrograph. Pre'parat., xii. (1904) pp. 167-75. 

 Olive, E. W. — Mitotic division of the Nuclei of the Cyanophyceae. 



Beih. Bot. Centralbl, xviii. Abt. 1 (1904) pp. 9-44 (2 pis.). 



Paulsen, O. — Plankton-Investigations in the waters round Iceland in 1903, with 

 two maps. Meddel. Komm. f. Uavunders. Ser. Plankton, i. (1904). 



Pen ard, E. — lUtude snr la Chlamydomyxa montana. (Study of C. montana.) 



Arch. Protistenkunde, iv. (1904) pp. 298-334 (1 fig.) 



Scherffel, A. — Notizen zur Kenntniss der Chrysomonadineae. (Notes on Chryso- 

 monadineae.') Ber. Deutsch. Bot. Gesell., xxii. (1904) pp. 439-44. 



Schorler, B. — Bereicherungen der Flora Saxonica im Jahre 1903. (Additions to- 

 the flora of Saxony in 1903.) Abh. Naturw. Gesell. Isis. Dresden, 



i. (1904) pp. 28-34. 

 Svedelius, N. — Algen aus den Landern der Magellanstrasse und Westpata- 

 goniens. (Algae froin the regions of the Magellan Straits and West Patagonia.) 



Svensk. Exped.iill Magellansldnderna, iii. No. 8 (1904). 



Wille, N. — Die Schizophyceen der Plankton Expedition. (The Sehizophycese of 



the Plankton Expedition.) Ergebnisse Plankton Exp. Humboldt-Stiftung, 



1904,88 pp. 3 pis. 



Fungi. 

 (By A. Lorrain Smith.) 



The Wintering of Peronospora in the Vine.* — J. von Istvanffi 

 finds that the continuance of this fungus is due not only to the oospores 

 which are imbedded in the tissue of the leaves, but that the mycelium 



* Ber. bot. Sect. Kgl. Ungar. Naturwiss. Ges., iii. (1904) pp. 74-7 (3 figs.). See 

 also Bot. Centralbl., xcviii. (1905) p. 97. 



April 19th, 1905 q 



