6 OHIO BIOLOGICAL SURVEY 



stu(l\- of representative districts, such as swampy areas, hilly country, 

 and river vallej's, and ultimately such study should cover practically every 

 county of the state. 



It will be seen that such studies as these must in time form a very 

 important basis in the determination of the greatest utility for the 

 particular sections which are studied and consequently give a foundation 

 for important economic application. It will be the purpose of the Survey 

 to co-operate with other state organizations such as the state experiment 

 station in the determination of factors which will be of service in the agricul- 

 tural development of the state and the utilization of forest areas; of the fish 

 commission in the studies which will determine with the greatest accuracy 

 the content and food supply for fish culture for the aquatic areas of the 

 state, and with the State Board of Health for the determination of the 

 distribution, occurrence and the importance of such species as may have 

 relation to disease in water contamination or as carriers of diseases 

 affecting man or domestic animals. 



The survey is especially fortunate in having the co-operation of a num- 

 ber of men who are eminent in particular fields of Biological study and 

 who, from their connection with the different educational institutions of the 

 state, are in a position to render a most important service in this con- 

 nection. 



Some idea of the value of this service may be realized from the 



statement that the survey has the promise of assistance from such men 

 as Mr. Charles Dury of Cincinnati, Dr. Sterki of New Philadelphia, Pro- 

 fessors Williams and Fink of Miami University, Walton of Kenyon, Jones, 

 Grover and Nichols of Oberlin, Stickne}^ and Coghill of Denison, Brook- 

 over of Buchtel, Sullivan of Western Reserve, Fuller of Baldwin Uni- 

 versity, Schaffner, Hine and Griggs of the Ohio vState University and 

 others. 



The bulletins which it is planned to issue to present the results of 

 the investigations, will be published at irregular intervals as such inves- 

 tigations are completed, and will be distributed to the co-operating insti- 

 tutions and to other organizations with which they may be exchanged and 

 will be put on sale at such price as may cover the cost of publication. 



Announcement of such issues, will be made from time to lime. 

 Organizations desiring to secure these publications for exchange are 

 invited to correspond with reference to such exchanges, stating the 

 character of publications which may be offered in return. Or a regular 

 subscription for entire Nolumes may be placed as announced on cover. 



