Sir,-In answer to your inquiry as to the merits of Gillies’ translation of the Politics of Aristotle, I can only say that it has the reputation of being preferable to ellis’, the only rival translation into English. I have never seen it myself, and therefore do not speak of it from my own knowledge. But so different was the style of society then, and with those people, from what it is now and with us, that I think little edification can be obtained from their writings on the subject of government. They had just ideas of the value of personal liberty, but none at all of the structure of government best calculated to preserve it. They knew no medium between a democracy (the only pure republic, but impracticable beyond the limits of a town) and an abandonment of themselves to an aristocracy, or a tyranny independent of the people. It seems not to have occurred that where the citizens cannot meet to transact their business in person, they alone have the right to choose the agents who shall transact it; and that in this way a republican, or popular government, of the second grade of purity, may be exercised over any extent of country. The full experiment of a government democratical, but representative, was and is still reserved for us. The idea (taken, indeed, from the little specimen formerly existing in the English constitution, but now lost) has been carried by us, more or less, into all our legislative and executive departments; but it has not yet, by any of us, been pushed into all the ramifications of the system, so far as to leave no authority existing not responsible to the people; whose rights, however, to the exercise of fruits of their own industry, can never be protected against the selfishness of rulers not subject to their control at short periods. The introduction of this new principle of representative democracy has rendered useless almost everything written before on the structure of government; and, in a great measure, relieves our regret, if the political writings of Aristotle, or of any other ancient, have been lost, or are unfaithfully rendered or explained to us. My most earnest wish is to see the republican element of popular control pushed to the maximum of its practicable exercise. I shall then believe that our government may be pure and perpetual. Accept my respectful salutations.