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There is a tree common to the Columbia river below the entrance of cataract river which in it's appearance when divested of it's foliage, much resembles the white ash; the appearance of the wood and bark is also that of the ash. it's stem is simple branching and diffuse. the leaf is petiolate, plane, scattered, palmate lobate, divided by four deep sinuses; the lobes are repand, or terminate in from 3 to 5 accute angular points, while their margins are indented with irregular and somewhat circular incissures. the petiole is celendric smooth and 7 inches long. the leaf 8 inches in length and 12 in bredth. this tree is frequently 3 feet in diameter and rises to 40 or 50 feet high. the fruit is a winged seed somewhate like the maple. in the same part of the country there is also another growth which resembles the white maple in it's appearance, only that it is by no means so large; seldom being more than from 6 to 9 inches in diamater, and from 15 to 20 feet high; they frequently grow in clusters as if from the same bed of roots spreading and leaning outwards. the twigs are long and slender. the stems simple branching. the bark smooth and in colour resembling that of the white maple. the leaf is petiolate, plane, scattered nearly circular, with it's margin cut with accute angular incissures of an inch in length and from six to 8 in number the accute angular points formed by which incissures are crenate, or cut with small accute angular incissures. or in this form. it is 3 inches in length, and 4 in width. the petiole celindric smooth and one and a 1/4 inches long. the fruit or flower not known.
Most swimming birds have only the front toes webbed, but in a few species, like the pelicans, even the hind toe is connected with its fellows by means of such a membrane. Nor must we forget those water fowls which, instead of palmated feet, have what is called the lobate foot, which means that the digits have broad lobes or flaps on their sides.
The boundary of the drift is strikingly lobate also, bending outward in broad, convex curves, where there are no natural barriers in the topography of the country to set it such a limit. Under these conditions such a lobate margin cannot belong to deposits of rivers, lakes, or ocean, but is precisely that which would mark the edge of a continental glacier which deployed in broad tongues of ice.
There is a tree common to the Columbia river below the enterance of Cataract River which in its appearance when divested of its folage, much resembles the white ash; the appearance of the wood and bark is also that of the ash. it's Stem is Simple branching and diffuse. the lief is petiolate, plane, scattered palmate lobate, divided by four deep Sinusus; the lobes are repand or terminate in from 3 to 5 accute angular points, while their margins are indented with irregular and Somewhat Circular incissures. the peteole is Celindric Smoth and 7 inches long. the leaf 8 inches in length and 12 in bredth. this tree is frequently 2 & 3 feet in diamieter, and rises to 50 or 60 feet high-the froot is a winged Seed Somewhat like the maple.
With the retreat of the lobate Wisconsin ice sheet toward the north and east, the southern and western ends of the basins of the Great Lakes were uncovered first; and here, between the receding ice front and the slopes of land which faced it, lakes gathered which increased constantly in size.
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