As to the good Sir Gilbert Blane, who has distributed far and wide a circular containing a description the most _naive_ on record, of the epidemic cholera, hard must be the heart which could refuse making the allowance which he claims for himself and his memoir; and though he brands those who see, in his account of the marchings and counter-marchings of the disease, nothing on a level with the intellect of the present age, as a parcel of prejudiced imbeciles, we must still feel towards him all the respect due to a parent arrived at a time of life when things are not as they were wont to be, _nec mens, nec aetas_. I may be among those he accuses of sometimes employing "unintelligible jargon," but shall not retort while I confess my inability to understand such expressions as "some obscure occurrence of unwholesome circumstances" which seem to have, according to him, both "brought" the disease to Jessore in 1817, and produced it there at the same time. Sir Gilbert marks out for the public what he considers as forming one of the principal differences between the English and Indian cholera, viz. that in the latter the discharges "consist of a liquid resembling thin gruel, in the English disease they are feculent and bilious." Now if he has read the India reports, he must have found abundance of evidence showing that sometimes there were _even bilious stools_[12] not at all like what he describes; and, again, if he is in the habit of reading the journals, he must have found _abundant_ evidence of malignant cholera with discharges like water-gruel in this country. As to the French Consul at Aleppo having escaped with 200 other individuals confined to his residence, I shall only say, as it is Sir Gilbert Blane who relates the circumstance, that he _forgot_ to mention that the aforesaid persons had retired to a residence _outside_ the city; which, permits me to assure you, Sir Gilbert, just makes all the difference in hundreds of cases:--they happened to retire to "_clene air_;" and had they carried 50 ague cases or 50 cholera cases with them (it matters not one atom which), the result would have been exactly the same. The mention of Barcelona and the yellow-fever, by Sir Gilbert, was, as Dr. Macmichael would term it, rather _unlucky_ for his cause, though probably lucky for humanity; for it cannot be too generally known that, during the yellow-fever epidemic there in 1821, more than 60,000 people left the city, and spread themselves all over Spain, without a single instance of the disease having been communicated, WHILE, AT BARCELONETTA, THE INFAMOUS CORDON SYSTEM PREVENTED THE UNFORTUNATE INHABITANTS FROM GOING BEYOND THE WALLS, AND THE CONSEQUENCES OF SHUTTING THEM UP WERE MOST HORRID.