86 ILLINOIS BIOLOGICAL MONOGRAPHS [280 



Mast, S. O. 



1911. Preliminary Report on Reactions to Light in Marine Turbellaria. Yearbook 

 Carnegie Inst. Washington, 9:131-33. 



Morgan, T. H. 



1898. Experimental Studies of the Regeneration of Planaria macidata. Arch. Entw. 

 Mech., 7:364-97. 



1899. Regeneration in Bipaliunt. Arch. Entw.-Mech., 9:563-86. 



1900. Regeneration in Planarians, Arch. Entw.-Mech., 10:58-119. 



*Oersted, a. S. 



1844. Entwurf einer systematischen Eintheilung und speciellen Beschreibung der 

 Plattwiirmer auf mikroskopische Untersuchungen gegriindet. Copenhagen, 

 96 pp., 3 Tab. 



Ott, H. N. 



1892. A Study of Stenostoma leucops O. Schm. Jour. Morph., 7:263-304; 3 pi. 



Patterson, J. T. 



1912. Early Development of Graffilla gemellipara, A Supposed Case of Polyembryony. 

 Biol. Bull., 22:173-204. 



Schmidt, O. 



1848. Die rhabdocoelen Strudelwiirmer des siissen Wassers. Jena, 65 pp. 



*Sekera, E. 



1888. Prispevky ku znamostem o turbellaruch sladkovoduich. Sitz.-ber. d. k. bohm. 

 Ges. d. Wissensch., math.-naturw. CI., p. 344. 



SiLLIMAN, W. A. 



1885. Beobachtungen uber die Susswasser-Turbellarien Nordamerikas. Zeit. wiss. 

 Zool., 41 :48-78. 



Stringer, Caroline E. 



1909. Notes on Nebraska Turbellaria with Descriptions of two new Species. Zool. 

 Anz., 34:257-262. 



*Uljanin W. 



1870. Die Turbellarien der Bucht von Sevastopol. Berichte des Vereins d. Freunde d. 

 Naturwissenschaften zu Moskau, 96 pp., 7 pi. 



Walton, L. B. 



1912. The Land Planarians of North America, with a Note on a New Species. (Amer. 

 Soc. Zool.) Science, n.s., 35:940. 



WiLHELMI, J. 



1908. On the North American Triclads. Biol. BuU., 15:1-6. 



Woodworth, W. McM. * 



1897. On Some Turbellaria from Illinois. Bull. Mus. Comp. Zool. Harvard Coll., 



31:1-16. 

 1896. On the Identity of Procotyla fiuviatilis Leidy and Dendrocoelum lacteum Oeisted. 



Amer. Nat., 30:1048-9. 



*Original papers not seen. 



