The trustees of the University of Virginia have had printed a few copies of _An Essay towards facilitating Instruction in the Anglo-Saxon and Modern Dialects of the English Language_: _By_ THOMAS JEFFERSON. The MS. has been preserved in the library of their University ever since Mr. Jefferson's death. It is a very characteristic production, and is printed in a thin quarto volume, prefaced by the following letter from Mr. Jefferson to Herbert Croft, LL.B., of London: MONTICELLO, _Oct. 30th, 1798_. Sir; The copy of your printed letter on the English and German languages, which you have been so kind as to send me, has come to hand; and I pray you to accept of my thanks for this mark of your attention. I have perused it with singular pleasure, and, having long been sensible of the importance of a knowledge of the Northern languages to the understanding of English, I see it, in this letter, proved and specifically exemplified by your collations of the English and German. I shall look with impatience for the publication of your "English and German Dictionary." Johnson, besides the want of precision in his definitions, and of accurate distinction in passing from one shade of meaning to another of the same word, is most objectionable in his derivations. From a want probably of intimacy with our own language while in the Anglo-Saxon form and type, and of its kindred languages of the North, he has a constant leaning towards Greek and Latin for English etymon. Even Skinner has a little of this, who, when he has given the true Northern parentage of a word, often tells you from what Greek and Latin source it might be derived by those who have that kind of partiality. He is, however, on the whole, our best etymologist, unless we ascend a step higher to the Anglo-Saxon vocabulary; and he has set the good example of collating the English word with its kindred word in the several Northern dialects, which often assist in ascertaining its true meaning.