The Ohio V^^cituralist, 



PUBLISHED BY 



The Biological Club of the Ohio State University. 



Volume XIII. . MAY, 1913. No. 7. 



TABLE OF CONTENTS. 



Of-BOEN — Utilization and Control of Aquatic Sources of Ohio J33 



Griggs— A Cytological Life Cycle 1J2 



McLellax— Meetings of the Biological Clulj 147 



UTILIZATION AND CONTROL OF AQUATIC RESOURCES 



OF OHIO.=^ 



Herbert Osborn. 



In attempting to present the matter of conservation of the 

 resources of our State, I realize that the problem is so large that 

 even to discuss one phase of it is more than I can expect to do, 

 but the importance of the matter is such that I desire to con- 

 tribute what I may in this direction. While the aquatic resources 

 have been perhaps less recognized than the ordinary resources in 

 agriculture and mining, we cannot question their close relation 

 to other lines of development, and especiall}^ in agriculture a 

 most important relationship exists. Considering the aquatic 

 resources b}^ themselves we must include the phases of aquatic 

 dependence for agriculture, manufacture and commerce, and a 

 careful examination of the problems will show that these are 

 most intimately blended, and in reality mutually serviceable. 



In arid regions the term "duty of water" is used to indicate 

 the service that water should perform, and this term might be 

 used with reference to our aquatic resources, but perhaps we 

 may speak in a broader sense of the service of water as a recog- 

 nition of its utility in all the varied activities of our common- 

 wealth. We must appreciate its necessity in agriciilture, its 

 importance in furnishing water supplies in cities for domestic 

 purposes and for power and for navigation, and in short its con- 

 stant use in all human activities. Taking the state at large, we 

 have approximately forty inches of rain-fall each year, and this 

 represents a certain amount of basis for the numerous activities 



*Read before the Ohio Academy of Science at its conservation session, 

 Nov. 27, 1908. 



133 



