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NEW YORK STATE MUSEUM 



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4. Diagram showing relation between rainfall and night of ground 



water at Geneva Agricultural Experiment Station, from December 

 1, 188G, to December 1, 1889. (Scale for hight of ground water 

 in feet, and for rainfall in inches) 161 



5. Diagram showing relation between precipitation, evaporation, runoff 



and temperature on Upper Hudson river 192 



6. Diagram showing relation between evaporation and temperature on 



Upper Hudson river, the years being arranged according to the 

 amount of evaporation 193 



7. Diagram showing relation between precipitation, runoff, evaporation 



and temperature on Upper Genesee river, the years being ar- 

 ranged in order of dryness 193 



8. Diagram showing relation between precipitation, runoff, evaporation 



and temperature on Muskingum river, Ohio, the years being 

 arranged in order of dryness 194 



9. Diagram showing relation between precipitation and runoff, in 



inches, on Upper Hudson river 195 



10. Diagram showing relation between precipitation and runoff, in 



inches, on Upper Hudson river, expressed by exponential formula . 195 



11. Runoff diagram of Hudson and Genesee rivers 196 



12. Runoff diagram of Muskingum river 198 



13. Runoff diagram of Croton river 199 



14. Diagram showing relation between precipitation and runoff in 



Upper Hudson river catchment during the storage period 200 



15. Diagram showing relation between precipitation and runoff in Upper 



Hudson river catchment during the growing period 201 



16. Diagram showing relation between precipitation and runoff in Upper 



Hudson river catchment during the replenishing period 201 



17. Map of the rivers of New York 203 



18. Section of power dam on Genesee river at Mount Morris, at north 



end of same 213 



19. Cross-section of main dam and gate house at Indian river 270 



20. Section of weir erected on Genesee river in 1896 30S 



21. Map of the reservoir system of the Great Lakes of the St Lawrence 



basin 318 



22. Section of dam at Fulton 342 



23. Cross-section of dam on Seneca river at Baldwinsville 345 



24. Cross-section of dam on Chittenango creek at Bridgeport 351 



25. Section of dam on Black river 354 



26. Section of Mechanicville dam 366 



27. Diagram of old Croton dam 378 



28. Dam on Mohawk river at Rexford Flats 404 



29. Section of dam at Little Falls 405 



30. Cross section of dam on Mohawk river at Ridge Mills, in compari- 



son with Bazin's series No. 162 405 



31. Section of dam on East Canada creek at Dolgeville 411 



32. Cross-sections and profile of dam on West Canada creek at Middle- 



ville 414 



