Contents 



Page 



Introduction 3 



The Lake Basins and Their Formation 5 



Morphometry 6 



Temperature 7 



Heat Budgets of Lakes 9 



Oxygen 14 



Carbon Dioxide 17 



Plankton. : 19- 



APPENDICES 



A. Bibliography op Works Cited 21 



B. Tables of Temperature and Dissolved Gases 22 



C. Distribution of Plankton 27 



D. Temperature and Gas Curves 30 



