Mr. Parton occasionally assumes an air of impartiality, and mildly expresses his disapprobation of Burr's vices; but in every instance where those vices were displayed he earnestly defends him. In the contest with Jefferson, Parton insists that Burr acted honorably; in the duel with Hamilton, Burr was the injured party; in his amours he was not a bad man; so that, although we are told that Burr had faults, we look in vain for any exhibition of them. In the cases where we have been accustomed to think that his passions led him into crime, he either displayed the strictest virtue, or, at most, sinned in so gentlemanlike a manner, with so much kindness and generosity, as hardly to sin at all. There are three ways of writing a biography: one is, to make a simple narrative and leave the reader to form his own opinion; another, to present the facts so as to illustrate the author's conception of his hero's character; a third, and the most common way, to proceed like an advocate, to suppress everything which can be suppressed, to sneer at everything which cannot be answered, to put the most favorable construction upon all dubious matters, and to throw the strongest light upon every fortunate circumstance. Mr. Parton has tried all three modes, and failed in all. He is an unskilful delineator of character, a poor story-teller, and a worse advocate. His book, despite its spasmodic style, lacks vigor. It indicates a want of firmness and precision of thought. It leaves a mixed impression on the mind. We venture to say, that two thirds of its readers will close the volume with an indefinite contradictory opinion that Burr was a sort of villanous saint, and that the other third, by no means the most inattentive readers, will not be able to form any opinion whatever. There are four periods or events in the life of Burr which are worthy of attention: his career in the army; his political course and contest with Jefferson; the duel; and the Mexican expedition. Upon the first and most pleasing portion of his life we cannot dwell. He entered the service shortly after the battle of Bunker Hill, and in two years rose to a Lieutenant-Colonelcy. Though engaged in several important battles, he did not have an opportunity to display great military talents, if he possessed them. He was distinguished, but not more so than many other young men. He resigned in the spring of 1779,--as he alleged, on account of ill health, but more probably because the failure of the Lee and Conway intrigue had disappointed his hopes of promotion.