438 SUMMARY OF CURRENT RESEARCHES RELATING TO 



Hinze, G. — 7eb3r Schwifeltropfen im Innsrn von Ojcillarien. (Concerning drops 

 of sulphur in Oscillaria.) 



[Djscribes the investigation of a species, n3ar Otcillatoria tenuis, the cells of 

 which contained certain drops which proved to be sulphur.] 



Ber. Deutsch. Bot. Gesell, xxi. (1903) pp. 394-8 (2 figs, in text). 



Howe, Marshall A. — The Museum Exhibit of Sea-weeds. 



Jour n. New York Bo!. Garden, v. (1994) pp. 56 -6 4, figs. 9-12. 



„ ,, The Pike Collection of Algae. Tom. cit., pp. 86-7. 



Keller, K. — Das Lsben des Meeres. Tier- und Pflanzenwelt des meeres, ihr Leben 

 und gegenseitige Beziehung. (The life of the sea. Animal- and plant- world of the 

 sea, their life and mutual relations.) 



St. Petersburg (1901) 4to, 141 pp., pt. 2(16 pis., 10 col., 30 woodmts). 



Kafoid, C. A.— The Plankton of the Illinois River, 1894-1893, with introductory 

 notes upjn the Hydrography of the Illinois and its Basin. Part I. Quantitative 

 investigations and general results. 



Campaign, III. : Ball. St. Labor. Nat. Hist. (1903) 535 pp., 50 pis. 



L argaiollt, V. — Le Diatomsedel Trentiao. XV. Lago di Nambino. (The diatoms 

 of Trentino. XV. Lake Nambino.) 



Tridentum, vi. (1903) Fasc. 6-7, pp. 270-4. 

 Maosis, A.— Les Diatomees des laos da Nantua et de Sylans. (The diatoms of 

 Lake Nantua and Lake Sylans.) 



Arch. Flore Jurass., xliii. xliv. (1904) pp. 24-6. 



Marsson, M. — Die Fauna und Flora des verschmutzten wassers unl ihre Beziehuig 

 zur biologischen Wasseranalyss. (The fauni and flora of fouled water an I its 

 relation to the biological analysis of water.) 



Forschungsber. Biol. Stat. Plon, x. (1903) pp. 60-73. 



Mazza, Angelo — Tin manipolo di Alghe marine della Sicilia. (A handful of 

 marine algse from Sicily.) 



[Continuation of the list begun in a previous Number. Records 84 species, 

 bringing the total to 139. Critical and topographical notes are appended.] 



Nuov. Notar., xv. (1904) pp. 49-75. 

 Miquel, P. — Eecherches experimentales sur la Physiologie, la Morphologie, et la 

 Pathologie des Diatomees. (Experimental researches on the physiology, mor- 

 phology and pathology of diatomaceae.) 

 I [A continuation, dealing with the re-establishment of the so-called sporangial 

 form of Nitzichia palea.~] Micrograplie preparateur, xii. (1904) 



pp. 32-7 (4 figs, iu text). 

 Mob i us, M. — TJeber den gegenwartigen stand der Algen-forschung. (On the 

 present condition of the study of algae.) 



Ber. Deutsch. Bot. (resell, xxi. (1901) General versamml.-Heft, 



pp. (135)-(146). 



Muller, O. — Bacillariaceen aus dem Nyassalanie und einigen benachbarten 



Gebieten. (Bacillariaceaj from Nyassaland and some of the surrounding districts.) 



Engler's Bot. Jahrb., xxxiv. (1901) pp. 9-38 (2 pis., 5 figs, in text). 



Ostenfeld, C. EL, & Paulsev, O v e — Planktonprover fra Nord-atlanterhavet, 

 c. 58°-60° N. Br., samlede: 1899 af Dr. K. J. V. Steenstrup. (Plankton-samples 

 collected iu the North Atlantic Ocean, lat. 58 n -60° N., in 1899, by Dr. K. J. V. 

 Steenstrup.) 



[Describes results obtained with new apparatus.] 



Medd.om Grbnland. Copenhagen, xxvi. (1904) pp. 143-210. 



Ost wald, W. — TJeber eine neue theoretische Betrachtungsweise in der Planktologie. 

 (On a new theoretical treatment iu Planktology.) 



Forschungsber. Biol. Stat. PlSn, x. (1903) pp. 1-49. 



Snow, J. W. — The Plankton Algae of Lake Erie, with special reference to the 

 Chlorophyceae. U.S. Fish Commission Bull., 1902 (issued 1903) 



pp. 369-94 (4 pis). 



Wesknberg-Lund, C. — Studier over de danske Sbers Plankton. (Studies on the 

 plankton of the Danish lakes.) 



Spec. Bel, Copenhagen (1904) 232 pp., 8 maps, 10 pis., 9 plankton-tables. 



