292 University of Calif or niu Publications in Zuolocjy [Vol.22 



Leidv, Joseph 



1879. Fresh-wator rhizopods of North America. U. S. Geol. Surv. Terr., 12. 



PA.SCHKB, A. 



f913. Susswasserflora Deutsehlands, Oesterrpiclis uiid der Schweiz. Hcfte 

 1-2, Flagellatae; Heft 3, Diiioflagellatae; Heft 9, Zygnemales; Heft 

 10, Baeillariales. Jena, Fischer. 



Pkitchari), a. 



1861. A History of the Infusoria, inchuling the Desmidiaeeae and Diato- 

 niaceae, British and foreign ; ed. 4. London. 



Beighard, J. E. 



1894. Biological examination of Lake St. Clair. Bull. Mich. Fish Conim., 

 no. 4. 



SCHOENICHEN, W., and K.\LBERL.\H, A. 



1909. B. Eyferth's Einfackste LchCHsformcn des Tierund Pflanzenreiches : 



ed. 4. Braunschweig, Goeritz. 



Stokes, Alfred C. 



1887. Microscopy for beginners. New York, Harper. 



TiLDEN, Josephine 



1910. Minnesota Algae. Geol. Nat. Hist. Surv. Minn., Botanical series, 8. 



United States Engineering Department 



1908. Survey of San Joaquin River, Stockton Channel, etc. House doc. 

 1124, 60 cong., 2 sess., serial no. 5435. 

 Ward, H. B. 



1897. Biological examination of Lake Michigan. Bull. Mich. Fish C'oniin., 



no. 6. 

 Weber, E. F. 



1898. Faune rotatorienue du bassin du Leman. Rev. Suisse Zool., 5, 263-785. 



