146 American Fisheries Society 



mill, or possible source of pollution was accurately 

 charted and described. The physical characteristics of 

 the streams, and the animal and plant life were recorded. 

 The method of catching the alewives, the history of the 

 fishery from old records, the possibilities of restocking 

 were studied for the purpose of formulating proper 

 measures for the development of this fishery. 



(3) Inland Streams 



The third step in the survey of the inland waters com- 

 prised a record of the smaller streams. It was manifestly 

 impossible from the standpoint of time and expense for 

 any one man, or even several men, to attempt to person- 

 ally examine a large number of brooks. The solution of the 

 problem was achieved by enlisting the services of the 

 various state fish and game wardens, each covering a dis- 

 trict with which he was thoroughly familiar, especially 

 in regard to the streams. The employment of men, for 

 the most part not trained scientists, necessitated simpli- 

 fying the examination, but many practical points con- 

 cerning the various brooks were obtained. Many of these 

 wardens had been stationed for years in their districts, 

 and in the course of their duties had become personally 

 familiar with most of the streams. 



Each warden was given typewritten instructions as to 

 the desired information, and the manner in which he 

 could co-operate was explained by a personal interview. 

 The warden, in connection with his regular duties, 

 gradually accumulated the necessary data, and after sev- 

 eral months was able to describe with the aid of a map 

 every stream in the district. Naturally more information 

 was available upon some brooks than on others, as certain 

 wardens showed greater aptitude in the work. In addi- 

 tion, many important facts were obtained from local rod 

 and gun clubs. 



The information thus obtained was systematized and 

 recorded in the form of a card catalogue (8x6 in. cards), 

 in which the names of the brooks were arranged alpha- 

 betically. Each stream had two cards, one a record of 



