FEB 7 - 1916. 
'The Ohio aturalist, 
PUBLISHED BY 
The Biological Club of the Ohio State University. 
Volume XIII. 
MAY, 1913. 
No. 7. 
133 
112 
147 
— LimiAfcj 
NEW rot?* 
UTILIZATION AND CONTROL OF AQUATIC RESOURCES 
OF OHIO * Ua; < u *W. 
Herbert Osborx. 
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 especially in agriculture a 
most important relationship exists. Considering the aquatic 
resources by 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 sendee 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 sendee of water as a recog¬ 
nition of its utility in all the varied activities of our common¬ 
wealth. We must appreciate its necessity in agriculture, 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 acti\dties 
*Read before the Ohio Academy of Science at its conservation session, 
Nov. 27, 1908. 
TABLE OF CONTENTS. 
Osborn— Utilization and Control of Aquatic Sources of Ohio 
Griggs—A Cytologies) Life Cycle. 
McLellan —Meetings of the Biological Club . 
133 
