halk deposit or bed. quence of this lack of bal- They. ranged from crea- ance, an engine in motion tures as large as a snipe to delivers through its driv- monsters having a spread ing wheels a series of blows of wing twenty-five feet upon the rails at every across. revolution, which, in the In the… … mer blow” is this: To pre- the same from which he took the now famous toothed BAT-LIKE PTERANODON vent injurious regularities birds. For several years he kept collectors at work in of motion in a horizontal, the locality, with such success that the Yale College or fore-and-aft, direction, and which…
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