246 Roosevelt Wild Life Bulletin 



brown trout in another and optimum rainbow trout conditions in 



another, and if the optimum conditions of one are unfavorable to 

 the others, it appears logical to believe that each species would seek 

 the portion of the stream in which the most favorable conditions 

 occur, and that the tendency would not be to an extensive invasion of 

 the domain of the others. 



Both Clemens and Embody have made recommendations for 

 planting the fish which conform to a great extent to this idea, 

 although apparently for different reasons. 



After all, the fact is that speculation does not decide any ques- 

 tion and there is still need of just such commendable investigations 

 as those conducted by these two biologists, but they should be 

 extended to other waters and include a thorough study of the 

 habits of the fish themselves. Until this is done, as Embody remarks 

 in effect, it is better to play safe. 



The Conservation Commission report for 1918, in connection 

 with the subject of " Stream Study," says : " So far only running 

 streams have been covered, because of the long time and special 

 equipment necessary for lakes. It is desirable to undertake this 

 work on the lakes as rapidly as possible, for the purpose of making 

 them most productive of the species of fish best suited to them." 



In 1920 a fish survey of waters in western New York, by the 

 Roosevelt Wild Life Forest Experiment Station, of the New York 

 State College of Forestry at Syracuse, was begun, in cooperation 

 with the Erie County Society for the Protection of Birds ; the 

 Buffalo Society of Natural Sciences ; the Springville Rod and Gun 

 Club ; the Boston Valley Fish and Game Club ; the Cazenovia Valley 

 Fish and Game Conservation Club ; and the Akron Forest, Field and 

 Stream Protective Association. The work was confined largely to 

 streams of Erie County, but some attention was given to a few 

 waters of Niagara and Genesee Counties. 



In 192 1 a preliminary reconnaissance of the streams in Allegany 

 State Park and vicinity was started by a party from the Roosevelt 

 Wild Life Forest Experiment Station, under the immediate direction 

 of Mr. T. L. Hankinson, Ichthyologist of the Station. 



Concerning the work, Mr. Hankinson says in his report (not 

 published) : " Such a short time could be spent at the Park in 1921, 

 and so much ground had to be covered in this preliminary recon- 

 naissance that little could be learned of the fish of the region. The 

 data in this report, then, can be of value in connection with those to 

 be obtained later, but they are insufficient for any important or 

 definite recommendations for a fish poHcy for the park or for any 

 body of water in it." 



Collections of fish, other aquatic vertebrates, and aquatic inverte- 

 brates were made ; photographs taken of all the places where collec- 

 tions were made and with every collection a record was made of 

 the following: locality, date, weather, air and water temperature, 

 rate of water flow, depth, character of the bottom, clearness of the 

 water, vegetation of the shore and stream bed. vertebrates associated 

 with fish, etc. Collections were made in the following streams: 



