ATKINS TlfE SALMON AND ITS ARTIFICIAL CULTURE. 277 



Table III. — Record of temperature at hatalung-lwuse, tfc. — Continued. 



Table IV. — Observations on temperature of Penobscot Rirer, at and near Biiclcsporf. 



[Station 1 is in the entrance of the "Thoroughfare" that separates Bucksport from Orphan Island, 

 and receives, with the Hood-tide, a great deal of water from over extensive muddy Hats, which warm it 

 uj) in sunny weather, and on cool nights may have the opposite effect. Being oii the east side of the 

 river, the morning sun has less effect than it would on the western shore. Depth, about 30 feet. 



Station 2 is in the main channel, opposite Fort Knox, and the tide was so strong that no satisfactory 

 obsiTvations of bottom-temperature were secured. 



Station 3 is at the southern end of Orphan I.sland, (town of Verona.) in close proximity to a good 

 salmon-weir in the current, that sets up and down the western or main channel of the Penob.scot. 

 Depth, about 30 feet at low water. Observations here made at or a little before low water, each day.] 



