288 BUI^tETlN OF THE BUREAU OF FISHERIES. 



Raunkiaer, C. 



1903. Anatomical Potamogeton studies and Potamogeton fluitans. Botanisk Tiddskrift, vol. 25, 

 no. 3, p. 253-280, text fig. 9. 

 Reichenbach, Ludovicus. 



1845. Icones Florse Germanics et Helveticae, vol. 7, p. 40, pi. 71. 

 REighard, J. E. 



1894. A biological examination of Lake St. Clair. Bulletin Michigan Fish Commission, no. 4, p. 

 60, text fig. I, pi. 2, I map. Lansing. 

 SauvagEau, M. C. 



1889. Contribution a 1 'etude du systf:me mecanique dans la racine des plantes aquatiques les Pota- 

 mogeton. Journal de Botanique, 3" annee, no. 4, p. 61-82, fig. 9. 

 i8go. Observations sur la structiue des feuilles des plantes aquatiques. Ibid., 4"= annee, p. 41, 68, 



117, 129, 173, 181, 221, 237. 

 i8gi. Sur les feuilles de quelques Monocotyledones aquatiques. Annales des Sciences Natu- 



relles Botanique, 7" s6r., p. 103-296. 

 1894. Notes Biologiques sur les Potamogeton. Journal de Botanique, 8' annee, p. i, 21, 45, 98, 

 112, 140, 166, fig. 31. V 



Shelford, Victor E. 



1913. Conditions of existence of aquatic animals, p. 58-72. In his: Animal communities in tem- 

 perate America. Chicago, University of Chicago press, 1913. 

 Sherff, Earl E. 



1913. Vegetation of Skokie Marsh. Bulletin of the Illinois State Laboratorj-, vol. g, art. 11, p. 

 575-614. pl- 86-97. 

 Schenck, H. 



1886. Die Biologic der Wassergewachse, pl. 2. Bonn. Entry taken from a review in Botanisches 

 Centralblatt, no. 24, p. 355. 

 Thompson, H. D. 



1897. Report on Plants. In; The biological examination of Lake Michigan. Appendix i, Bulletin 



Michigan Fish Commission, no. 6, p. 72-75. 

 Thompson, R. B. 



1913. Description of edible plants. In: The increase of the food supply for ducks in northern 

 Ontario. Toronto, p. 8-17, text fig. 2, fig. i-5b. 

 Tilbury, Mary Ruth. 



1913. Notes on the feeding and rearing of the midge, Chironomus cayugae johannsen. Journal 

 New York Entomological Society, vol. 21, p. 305-308. 

 TiTcoMB, John W. 



1909. Aquatic plants in pond culture. Bm-eau of Fisheries, doc. no. 643, 31 p., 32 text fig., 2 pl. 

 UspEnskij, E. E. 



1913. Zur Phylogenie und Okologie der Gattung Potamogeton. Moscou. Entry taken from a note 



in Flora, bd. 7, p. 187. 

 Warming, Eugene. 



1909. Oecology of plants. An introduction to the study of plant communities, p. 422. Oxford. 

 WiEgand, K. M. 



1898. Embr>'ology of Potamogeton. Botanical Gazette, vol. 25, p. 116-117. 



1899. Development of microsporangium and microspores in Potamogeton. Ibid., vol. 28, p. 



328-359, pl. 24-25. 

 York, Harlan. 



1905. The hibemaculaof Ohio water plants. Ohio Naturalist, vol. 5, no. 4, p. 3, fig. 3. Columbus. 



