Since my last letter a code of regulations, in the anticipation of cholera, has been published by the Board of Health. _Let our prayers be offered up with fervency tenfold greater than before, that our land may not be afflicted with this dire malady._ The following statement, however, may not be altogether useless at this moment. According to the _Journal des Debats_ of the 24th instant, the Emperor of Austria, in a letter to his High Chancellor, dated Schoenbrunn, October 10th, and published in the _Austrian Observer_ of the 12th, formally makes the most magnanimous declaration to his people, THAT HE HAD COMMITTED AN ERROR IN ADOPTING THE VEXATIOUS AND WORSE-THAN USELESS QUARANTINE AND CORDON REGULATIONS AGAINST CHOLERA; that he did so before the nature of the disease was so fully understood; admits that those regulations have been found, after full experience, to have produced consequences more calamitous than those arising from the disease itself ("_plus funeste encore que les maux que provenaient de la maladie elle-meme_.") He kindly makes excuses for still maintaining a modified quarantine system at certain points, in consequence, as he states, of the opinions still existing in the dominions of some of his neighbours, _for otherwise his commercial relations would be broken off. To secure his maritime intercourse, he must do as they do!_ We find that as _all_ the Prussian cordons have been dissolved, _their vessels_ are excluded from entrance into certain places on the Elbe. What a horrid state of things! But, as a reference will shew, this was one of the things stated in my first letter as likely to occur: it is surely a fit subject for immediate arrangement between governments. In the mean time, we cannot but profit by the great lesson just received from Austria. I shall add no more on the present occasion, than that my last information from Edinburgh notifies the death, from _Scotch cholera_, of two respectable females in that city, after an illness of only a few hours. LETTER VI.