Dr. Channing's MS. is very excellent. The letters are bold, well-sized, and beautifully formed. They are, perhaps, too closely crowded upon one another. One might, with some little acumen, detect the high finish of Dr. C.'s style of composition in the character of his chirography. Boldness and accuracy are united with elegance in both. The paper very good, and wafered. LETTER XXIII. _Philadelphia_, ----. _Dear Sir_,--I must be pardoned for declining to loan the books you mention. The fact is, I have lost many volumes in this way--and as you are personally unknown to me you will excuse my complying with your request. Yours, &c. [Illustration: Jos. Hopkinson] JOSEPH Y. MILLER, ESQ. This is a very good MS.--forcible, neat, legible, and devoid of superfluous ornament. Some of the words are run together. The writing slopes considerably. It is too uniform to be picturesque. The lines are at equal distances, and a broad margin is on the left of the page. The chirography is as good at the conclusion as at the commencement of the letter--a rare quality in MSS.--and evincing _indefatigability_ of temperament. LETTER XXIV. _Washington_, ----. _Sir_,--Yours of the ---- came duly to hand. I cannot send you what you wish. The fact is, I have been so pestered with applications for my autograph, that I have made a resolution to grant one in no case whatsoever. Yours, &c. [Illustration: Wm. Emmons] JOSEPH Z. MILLER, ESQ. The writing of the orator is bold, dashing, and chivalrous--the few words addressed to Mr. Miller occupying a full page. The lines are at unequal distances, and run diagonally across the letter. Each sentence is terminated by a long dash--black and heavy. Such an epistle might write the Grand Mogul. The paper is what the English call silver paper--very beautiful and wafered.