RECENT FRESHWATER INVESTIGATIONS 269 



*97a. Beitrag zur Kenntniss der Nahrung unserer Fische. 



Allg. Fisch. Zeit., xxii, 19, 361-6; 20, 383-8. 

 *97b. Ein Beitrag zur Biologie der Seen. 

 Allg. Fisch. Zeit., xxii, 19, 369-71. 

 Drown, Thos. M. 



93. On the Amount of Dissolved Oxygen in the Waters of Ponds 

 and Reservoirs at Different Depths, in Winter under the Ice. 

 Ann. Kept. Mass. Bd. Health, xxiv, 333-42. 

 DdPlessis, G., see Plessis, G. du. 

 Dtbowski, B. 



*98. Switez. [Der Switez-See.] 



Kosmos, Leruberg, xxii, 5, 252-75. 

 Eckstein, K. 



*95. Die Rotatorienfauna des Mtiggelsees. [Aus. d. Biol. Station d. 

 deutsch. Fischerei-Vereines.] 

 Zeit. f. Fischerei, iii. 5 pp. 7 figs. 

 Rev. Z. C, ii, 756-7. 

 Scantily i*epresented. 



ElGENMANN, C. H. 



95. Turkey Lake as a Unit of Environment and the Variation of its 

 Inhabitants. (With faunal lists by numerous collaborators). 

 Proc. Ind. Acad. Sci., v, 204-96. 



Entz, G. 



96. Protozoa. Fauna regni hungariae. 



Reg. Soc. Sci. Nat. Hung. Budapest. 29 pp. 

 Faunal list. 



97. Einleitung und allegemeine Betrachtungen liber die Fauna 

 des Balatonsees. 



Result, wiss. Erforsch. Balatonsees, ii, 1, 5-39. 5 fig. 

 Rev. Z. C, v, 351-2: Am. Nat., xxxii, 791-3. 



EVERMANN, B. W. 



93. The Investigation of Rivers and Lakes with Reference to the 

 Fish Environment. 

 Bull. U. S. Fish Comm., xiii, 79-73. 

 Scope of work under the commission — outline for lake work. 



Field, G. W. 



96. Scientific Agriculture. 

 Rept. R. I. Bd. Agl., 96, 94-8. 



97. On the Plankton of Brackish Water. [Abstract] 

 Science, n. s., v, 424-5. 



98. Use of the Centrifuge for. collecting Plankton. [Abstract.] 

 Science, n. s., vii, 201. 



98a. Methods in Planktology. 



Rept. R. I. Exp. Sta., x, 2, 120-49; Am. Nat., xxxii, 735-45. 



FitzGerald, D. 



95. The Temperature of Lakes. 



Trans. Am. Soc. C. E., xxxiv, 67-114. 



