Fishes . a, fcd C3 tfl ?g 3 -3 S-M. z V ^ I / \ The Cyclostomes, or Lampreys 177 find unsurmountable in their way, such as verticalfalls or dams, they turn around and go down-stream until theyfind another, up which they go. This is proved every springby the number of adult lampreys which are seen temporarilyin Fall Creek and Cascadilla Creek. In each of these streams,about a mile from its mouth, there is a vertical fall overthirty feet in height which the lampreys cannot surmount, andin fact they have never been seen attempting to do so. Afterclinging with their mouths to the stones

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Fishes . a, fcd C3 tfl ?g 3 -3 S-M. z V ^ I / \ The Cyclostomes, or Lampreys 177 find unsurmountable in their way, such as verticalfalls or dams, they turn around and go down-stream until theyfind another, up which they go. This is proved every springby the number of adult lampreys which are seen temporarilyin Fall Creek and Cascadilla Creek. In each of these streams,about a mile from its mouth, there is a vertical fall overthirty feet in height which the lampreys cannot surmount, andin fact they have never been seen attempting to do so. Afterclinging with their mouths to the stones at the foot of thefalls for a few days, they work their way down-stream, care- ?^^ ?riiiiflfittll11ri-ianiir^---°^°- r, jr».-~.—???——

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Keywords: ., bookcentury1900, bookdecade1900, bookpublisher, booksubjectfishes