that mathematical preparation, which is neceffary to the compre henfion of Smith's celebrated work, and other theoretical trea➡ tifes. The doctrine of vibrations, and of the length and proportion of ftrings, is here made familiar: and the ufe of the monochord is ex, lained, with a defeription of fuch an inftrument, of very fuperior construction, contrived and executed by the gen tleman to whom thefe pages are dedicated, Lawfon Hudleston, Efq. of Shaftesbury.

The practical advantage moft immediately fought in this treatife, is the mode of tuning piano-for:es, and other keyed inftruments, fo as to remove, as much as poffible, the neceffary imperfection of temperament arifing from their construction: but as the best method of effecting this purpofe, Mr. Marsh recommends the improvement of having, throughout thofe inftruments, two diftinct notes for G fharp and A flat. As this might be done, he fays, without materially increafing either the dimen fons or expence of the inftrument, he cannot but exprefs his furprife that it has not long ago been adopted, not only in organs, but in piano-fortes. It might be effected by means of a double, or divided key for thofe two notes, "which key being dif tinguished from all the reft, as the centre of three fhort keys, performers in general would foon get into the habit of managing their fingering, fo as always readily to diftinguish the one note from the other." We completely agree with the author in this and most other points, and strongly recommend his book to thofe whom it is calculated to inftruct.

ART. 27, Flowers of Literature for 1808, 1809, or characteriftic Sketches of human Nature and modern Manners. To which are added a general View of Literature during that Period; Portraits and biographical Notices of eminent literary and political Characters: with Notes, hiftorical, critical, and explanatory. By Francis William Blagdon, Elq. Proprietor and Editor of the Phoenix, and the Weekly Political Regifter. To be continued annually. 12mo, 448 pp. 6s, Crosby and Co, 1810.

This is, as ufual, a very pleafing mifcellany; the paffages in it are well felected from a great variety of publications, and the illuftrative matter, of all kinds, is very ably prepared. See Our former notices of this work.

* His remarks on the further improvements attempted in the Temple organ, that at the Foundling Hofpital, and one exhibited at Mr. Elliott's in Tottenham Court Road, are extremely judicious. We could not but fmile, though without difapprobation, at the concluding idea of Mr. Marth, that one of the privileges of Heaven is to be that mufic is to be entirely perfect, that fyftems of tuning fhall no longer perplex us, and that " TEMPERAMENT SHALL BE NO MORE!"?

Mr.

Mr. Blagdon, the editor, apologizes for an unufual delay in the publication of this volume, partly on account of unavoidable obftacles, and partly by the confeffion, that his own political avocations have prevented him from making fo rapid a progrefs as he could have wifhed, in the felection of the matter. To the latter part of the allegation we can bear the ftrongest teftimony, by faying that we have read nearly the whole of his principal, and now fole paper, "the Poli tical Regifter," and that it contains abundant proof not only of his diligent exertion in the caufe of truth, but of his ability and patriotic zeal. We fhould blush for our country, and be much inclined to defpair of her fafety, if fuch efforts, made at fuch a time, fhould not be crowned with juft and honourable rewards; though at the fame time we confefs, that there are but too many reasons to apprehend a different refult; the chief of which reafon is an unaccountable apathy, in thofe of found prinçiples, refpecting the effects of political writings, whether fedi tious or loyal,

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