XXIV-OBSTRUCTIONS TO THE x\SCENT OF FISH IN CERTAIN 



KIVERS. 



For the purpose of more accurate iuformatiou as to the accessibility of 

 cartain interior waters to salmon, shad, and other auadromous fishes, 

 passing upward from the portion of the ocean or of the great lakes to 

 which the former are tributary, I secured the vahiable co-operation of 

 certain gentlemen, whose reports are herewith communicated. With 

 that of Mr. E. M. Stilwell, fish-commissioner of Maine, has been incor- 

 porated a similar communication from Mr. Charles G. Atkins. Dr. M. C. 

 Edmunds has furnished a report on the streams connected with Lake 

 Champlain and the Saint Lawrence lliver. Bath these articles are 

 accompanied by maps. Other articles of less magnitude, but of much 

 interest, have been supplied of some rivers in Virginia, by Mr. McKennie, 

 through Thaddeus I^Torris, and of tributaries of Lake Michigan, by Mr. 

 J. F. Ingalls and by Mr. Milner, 



A— OBSTRUCTIONS IX THE RIVERS OF MAINE. 



By E. M. Stilwell. 

 SAIXT CROIX RIVER. 



1. Calais, fifteen miles*; Union Mills dam, according to tide, 10 feet. 



2. Barring, nineteen miles ; dam, 7 feet. 



3. West Branch, forty miles; Princeton dam, 8 feet. 



4. Vanceborough, E. B., fifty-seven miles ; dam and fish-way. 



0. Forest City, eighty-two miles; dam, 10 feet. 



PEN^IAQUAX RIVER. 



1. On3 and a half miles from mouth ; grist-mill dam, 7 feet ; saw-mill 

 dam, 91 feet. 



2. Iron Forks, one mile ; dam, 25 feet. 



3. Little Falls, four miles; dam, 20 feet. 



DENNYS RIYER.i 



1. Dennysville dam, 10 feet; Dennysville dam, 1^ miles; 12 feet; 

 fish-way. 



2. Millwaukie, 4 miles; dam, 14 feet ; fish-way. 



3. Meddybemps, 20 miles; dam, 10 feet. 



* Distauce from mouth of river, 

 t See map for dam? ou tributary. 



