DEAR SIR,--Forty-three volumes read in one year, and twelve of them quarto! Dear Sir, how I envy you! Half a dozen octavos in that space of time, are as much as I am allowed. I can read by candlelight only, and stealing long hours from my rest; nor would that time be indulged to me, could I by that light see to write. From sunrise to one or two o'clock, and often from dinner to dark, I am drudging at the writing table. And all this to answer letters into which neither interest nor inclination on my part enters; and often from persons whose names I have never before heard. Yet, writing civilly, it is hard to refuse them civil answers. This is the burthen of my life, a very grievous one indeed, and one which I must get rid of. Delaplaine lately requested me to give him a line on the subject of his book; meaning, as I well knew, to publish it. This I constantly refuse; but in this instance yielded, that in saying a word for him, I might say two for myself. I expressed in it freely my sufferings from this source; hoping it would have the effect of an indirect appeal to the discretion of those, strangers and others, who, in the most friendly dispositions, oppress me with their concerns, their pursuits, their projects, inventions and speculations, political, moral, religious, mechanical, mathematical, historical, &c., &c., &c. I hope the appeal will bring me relief, and that I shall be left to exercise and enjoy correspondence with the friends I love, and on subjects which they, or my own inclinations present. In that case, your letters shall not be so long on my files unanswered, as sometimes they have been, to my great mortification. To advert now to the subjects of those of December the 12th and 16th. Tracy's Commentaries on Montesquieu have never been published in the original. Duane printed a translation from the original manuscript a few years ago. It sold, I believe, readily, and whether a copy can now be had, I doubt. If it can, you will receive it from my bookseller in Philadelphia, to whom I now write for that purpose. Tracy comprehends, under the word "Ideology," all the subjects which the French term _Morale_, as the correlative to _Physique_. His works on Logic, Government, Political Economy and Morality, he considers as making up the circle of ideological subjects, or of those which are within the scope of the understanding, and not of the senses. His Logic occupies exactly the ground of Locke's work on the Understanding. The translation of that on Political Economy is now printing; but it is no translation of mine. I have only had the correction of it, which was, indeed, very laborious. _Le premier jet_ having been by some one who understood neither French or English, it was impossible to make it more than faithful. But it is a valuable work.