“If any infection or infectious _aura_ can be supposed to be packed up, and brought in goods, such infection or infectious aura must necessarily issue forth from them in greatest abundance, and with the greatest force, at the first opening or unpacking of them; and, as it must continue to fly off every moment, and be thereby continually diminishing, it is likewise certain, that in a very few days the goods must be in a great measure, if not entirely, cleared of it. Wherefore, if the porters could have been infected from the goods at all, it must have been at the first opening of them: but, even according to this journal, the porters that first fell sick were not taken ill before the 23d of June, whereas Chataud’s ship arrived the 25th of May preceding; so that the goods of that ship, in purifying which the porter first mentioned was employed, had been airing and purifying for twenty-six or twenty-eight days before this accident happened; and it cannot be conceived that after so long a time they should not have been entirely purged of all infection or infectious aura, if any could have been brought with them. Or if it can be supposed, which I think impossible, that any part might still be left, it must withal be supposed so much less than at first, as not to be capable of doing, those porters especially, the least hurt: to suppose otherwise would be to argue that the same man who some days before had received and borne a very great quantity and force without any injury, could then be killed by a quantity and force infinitely less. According to the report of merchants, _Frenchmen are not subject to the plague in Turky_; and it cannot be conceived that so small a quantity of infectious air as can be packed up and brought in a bale of goods, should destroy them in France, or in an air and climate distant and different; when the whole atmosphere of the same infectious air is found not to injure them in very infected places, and wherein it is allowed to be bred and generated.” Thus far Dr Pye.--Let us now hear Dr. Russel in answer.