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33. Argument of William Whiting, Esq. in the case of Ross Winans v. Orsamus Eaton et al. : for an alleged infringement of his patent for the eight-wheel railroad car, before the Hon. Samuel Nelson, justice of the United States Circuit Court for the Northern District of New York

34. A treatise on military surveying : including sketching in the field, plan-drawing, levelling, military reconnoissance, etc. : also a particular description of the surveying instruments commonly employed by military men, with instructions for using and adjusting them