203 

 FIRST REPORT OF THE BIOLOGICAL STATION. 



CoNTKNT.S. — DlKECTORS' FiRST REPORT OF BlOLOGICAL STATION. 



Inti'oduftoiT. 



Acknowledgments. 



E(|uiiiinent, 



Pliinkton not. 



Sounding apparatus. 



Additional equipment. 



Plan of work. 

 Part I. — Turkey Lake as a Unit ok Environment. 



Introductory. 



Orientation. 



General features. 



Size. 



Relation of water to outllow and evaporation. 



Constancy of Turkey Lake as a unit of environment. 



A Preliminary Report on the Physical Features of Turkey Lake — D. C. 

 Ridgley. 



Hydrographic map of Turkey Lake— C. .Juday. 



Temperature of Turkey Lake — J. P. Dolan. 

 Part II. — The Inhabitants of Turkey liAKE. 



Note on Plankton — C. II. Eigenmann. 



Creneral Fauna — C. H. Eigenmann. 



Leeches -Mrs. B. C. Ridgley. 



Rotifera— D. S. Kellicott. 



Claiocera — E. A. Birge. 



Decapoda— W. P. Hay. 



Mollusca -R. E. Call. 



Fishes — C. H. Eigenmann. 



Patrachia — C. Atkinson. 



Snakes — G. Reddick. 



Turtles — ('. H. Eigeinnann. 



Water Birds — F. M. Chamberlain. 

 Part III. — Variation. 



The study of Variation — C. H. Eigenmann. 



Variation of Etheostoma caprodes — W. J. Moenkhaus. 



