Plate XXI. 



Inclined Fishways. 



Fig. 1. Tlie Swazey Pl.in, invented by Alfred Swazey 

 of Bxicksj'ort, Maine. 

 2. The same, with additions, by C. G. Atkins. 

 H. The Foster Plan. 



Fig.4. Same, modified; asbnilt on Penmaqiian River. 



5. From a design for a fishway on Androscoggin 

 Hiver. Aug. 1870. 



6. The Brackutt plan, patented by E. A, Brackett of 

 Massachusett«. 



