450 Literature 



LOHMANN, H. ('11). Ueber das Nannoplankton und die Zentrifugierung kleinster Wasser- 



proben zur Gcwinnung desselben in lebendem Zustande. Int. Revue d. ges. Hydro- 



biologie u. Hydrographie, iv, 1911. 

 MARSH, C. DWIGHT ('03). The Plankton of Lake Winnebago and Green Lake. Bull. 



Wisconsin Geol. and Nat. Hist. Survey, no. xii, Madison, Wis. 1903. 

 MULLER, 0. ('04). Bacillariaceen aus detn Nyassalande und einigen benachbarten 



Gebieten. Zweite Folge. Bugler's Botan. Jahrbiich. xxxiv, 1904. 

 OSTENFELD, C. H. ('08). Phytoplankton aus dem Victoria Nyanza. Engler's Botan. 



Jahrbiich. xli, 1908, 

 OSTENFELD, C. H. ('09). Notes on the Phytoplankton of Victoria Nyanza, East Africa. 



Bull. Mus. Comp. Zool. at Harvard College, Hi, no. 10, 1909. 

 OSTENFELD, C. H. & WESENBERG-LUND, C. ('06). A Regular Fortnightly Exploration of 



the Plankton of the two Icelandic Lakes, Thingvallavatn and Myvatn. Proc. Roy. 



Soc. Edinburgh, xxv, part xii, 1906. 

 PASCHER, A. ('11). Uber Nannoplanktonten des Siisswassers. Ber. Deutsch. Botan. Ges. 



xxix, 1911. 

 SCHERFFEL, A. ('10). Rhaphidonema brevirostre nov. spec., egyuttal odelek a Magas- 



Tdtra nivalis florajahoz. Beiblatt zu den Botanikai Kozlemenyek, Heft 2, 1910. 

 SCHMIDLE, W. ('02). Das Chloro- und Cyanophyceenplankton des Nyassa und einiger 



anderer innerafrikanischer Seen. Engler's Botan. Jahrbiich. xxxiii, 1902. 

 SCHRODER, B. ('97). Ueber das Plankton der Oder. Ber. Deutsch. Bot. Ges. xv, 1897. 

 SCHRODER, B. ('99). Das pflanzliche Plankton der Oder. Forschungsber. a. d. Biol. 



Station zu Plon, vii, 1899. 

 SCHRODER, B. ('00). Das Pflanzenplankton preussischer Seen. Westpreuss. Bot. -Zool. 



Verein, Danzig, 1900. 

 SCOURFIELD, D. J. ('11). The Use of the Centrifuge in Pond-life Work. Journ. Quekett 



Micr. Club, xi, 1911. 



SHANTZ, H. L. ('07). A Biological Study of the Lakes of the Pike's Peak Region- 

 Preliminary Report. Trans. Amer. Microscop. Soc. xxvii, March, 1907. 

 SNOW, JULIA W. ('03). The Plankton Algae of Lake Erie. U.S. Fish Commission 



Bulletin, 1902 (Washington, 1903). 

 TRANSEAU, E. N. ('13). The Periodicity of Algae in Illinois Trans. Amer. Microscop. 



Soc. xxxii, Jan. 1913. 

 VIRIEUX, J. ('13). Plancton du lac Victoria Nyanza. Resultats scientif. Voyage de 



Ch. Alluard et R. Jeannel en Afrique Orientale 1911-1912. Paris, 1913. 

 VOLK, R. ('03; '06). Hamburgische Elb-Untersuchung. Mitth. a. d. Naturhist. Mus. in 



Hamburg. I : xix, 1903 ; VIII : xxiii, 1906. 

 WELWITSCH, F. ('68;. In Journ. of Travel and Nat. Hist, i, 1868. 



WESENBERG-LUND, C. ('04). Studier over de Danske Sb'ers Plankton. Kjobenhavn, 1904. 

 WESENBERG-LUND, C. ('08). Plankton Investigations of the Danish Lakes. Copenhagen, 



1908. 

 WEST, G. S. (G. S. W. '07). Report on the Freshwater Algae, including Phytoplankton, of 



the Third Tanganyika Expedition conducted by Dr W. A. Cunnington, 1904-1905. 



Journ. Linn. Soc. Bot. xxxviii, Oct. 1907. 

 WEST, G. S. (G. S. W. '09 A). A Biological Investigation of the Peridinieae of Sutton Park, 



Warwickshire. New Phytologist, viii, 1909. 

 WEST, G. S. (G. S. W. '09s). The Algae of the Yan Yean Reservoir, Victoria : a Biological 



and (Ecological Study. Journ. Linn. Soc. Bot. xxxix, 1909. 

 WEST, G. S. (G. S. W. '12). Freshwater Alga3 of the Percy Sladen Memorial Expedition 



in South- West Africa, 1908-11. Ann. South Afric. Mus. ix, part ii, 1912. 



