...The wholebank shows the marks of erosion by water... 
William T. Hornaday 「The Extermination of the American Bison」
...However, the dip ofthe rocks has channelled drainage southward and erosion has cutnumerous, deep, parallel-sided canyons rather than a simple, retreatingescarpment...
Sydney Anderson 「Mammals of Mesa Verde National Park, Colorado」
...36959, has the upper third molar on the right sidemissing, possibly as a result of bone erosion...
Rollin H. Baker 「Mammals from Tamaulipas, Mexico」
...In thenext few years heavy erosion occurred in the upland fields, and thesoil carried downstream was deposited in the pond...
Henry S. Fitch 「The Forest Habitat of the University of Kansas Natural History Reservation」
...TheMesa Verde land mass is the remnant of a plateau that erosion has dissectedinto a series of long, narrow mesas, joined at their northern ends, but otherwiseseparated by deep canyons...
Charles L. Douglas 「Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado」
...Plate shows in a measure the extent of this erosion...
Cosmos Mindeleff 「The Repair Of Casa Grande Ruin, Arizona, in 1891」
...External contour isof course a product of erosion, yet similarity of contour does notnecessarily indicate either equal erosion or equal antiquity...
Cosmos Mindeleff 「Casa Grande Ruin」
... Water erosion has certainly formed the Theban wadis...
L.W. King and H.R. Hall 「History Of Egypt, Chaldæa, Syria, Babylonia, And Assyria In The Light Of Recent Discovery」
...Near the rear of the cave erosion of the lower part of the easternwall formed a rudely triangular recess or cavity 30 feet long by 7feet deep at the widest part...
Gerard Fowke 「Archeological Investigations」
...Owing to the steep slopeat every point, except toward the summit of the ridge, there must besome erosion, and consequently the age of the burials can not begreat...
Gerard Fowke 「Archeological Investigations」
...A short distance from these sites, across a ravine, is a bare, narrowridge, very steep on each side, so that erosion would readily act...
Gerard Fowke 「Archeological Investigations」
...From the north wall afacing of large stones extending down the surface of the dune for avertical distance of 15 feet has prevented erosion by the winds...
Gerard Fowke 「Archeological Investigations」
...The hand of man and the erosion of the elements have dealt harshlywith this portion of Honanki, for not a fragment of timber now remainsin its walls...
Jesse Walter Fewkes 「Archeological Expedition to Arizona in 1895」
...This is a neat, finely-decussated, concolorous species, with the upperwhorls nodulous from erosion, as in Vivipara praerosa, Gerst...
John McDouall Stuart 「Explorations in Australia, The Journals of John McDouall Stuart」
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