It should be observed, for the information of those who may be desirous of investigating the nature of this extraordinary distemper, that, from its character and its symptoms, approximating to the peculiar plague, which (according to the before mentioned Arabic record) ravaged and depopulated West Barbary four centuries since, the Arabs and Moors were of opinion it would subside after the first year, and not appear again the next, as the Egyptian plague does; and agreeably to this opinion, it did not re-appear the second year: neither did St. John's day, or that season, affect its virulence; but about that period there prevails along the coast of West Barbary, a trade-wind, which, beginning to blow in the month of May, continues throughout the months of June, July, and August, with little intermission. It was apprehended that the influence of this trade-wind, added to the superstitious opinion of the plague ceasing on St. John's day, would stop, or at least sensibly diminish the mortality; but no such thing happened: the wind did set in, as it invariably does, about St. John's day; the 176 disorder, however, increased at that period, rather than diminished. Some persons were of opinion, that the infection maintained its virulence till the last; that the decrease of mortality did not originate from a decrease of the _miasma_, but from a decrease of population, and a consequent want of subjects to prey upon; and this indeed is a plausible idea; but admitting it to be just, how are we to account for the almost invariable fatality of the disorder, when at its height, and the comparative innocence of it when on the decline? for _then_, the chance to those who had it, was, that they would recover and survive the malady.
The old men seemed to indulge in a superstitious tradition, that when this peculiar kind of epidemy attacks a country, it does not return or continue for three or more years, but disappears altogether, (after the first year,) and is followed the seventh year by contagious rheums and expectoration, the violence of which lasts from three to seven days, but is not fatal. Whether this opinion be in general founded in truth I cannot determine; but in the spring of the year 1806, which was the seventh year from the appearance of the plague at Fas in 1799, a species of influenza pervaded the whole country; the patient going to bed well, and, on rising in the morning, a thick phlegm was expectorated, accompanied by a distressing rheum, or cold in the head, with a cough, which quickly reduced those affected to extreme weakness, but was seldom fatal, continuing from three to seven days, with more or less violence, and then gradually disappearing. 177 During the plague at Mogodor, the European merchants shut themselves up in their respective houses, as is the practice in the Levant; I did not take this precaution, but occasionally rode out to take exercise on horseback. Riding one day out of the town, I met the Governor's brother, who asked me where I was going, when every other European was shut up? "To the garden," I answered.--"And are you not aware that the garden and the adjacent country is full of (_Jinune_) departed souls, who are busy in smiting with the plague every one they meet?" I could not help smiling, but told him, that I trusted to God only, who would not allow any of the _Jinune_ to smite me unless it were his sovereign will, and that if it were, he could effect it without the agency of _Jinune_. On my return to town in the evening, the beach, from the town-gate to the sanctuary of Seedi,[137] Mogodole was covered with biers. My daily observations convinced me that the epidemy was not caught by approach, unless that approach was accompanied by an inhaling of the breath, or by touching the infected person; I therefore had a separation made across the gallery, inside of my house, between the kitchen and dining parlour, of the width of three feet, which is sufficiently wide to prevent the inhaling the 178 breath of a person. From this partition or table of separation I took the dishes, and after dinner returned them to the same place, suffering none of the servants to come near me; and in the accounting-house, I had a partition made to prevent the too near approach of any person who might call on business; and this precaution I firmly believe to be all that is necessary, added to that of receiving money through vinegar, and taking care not to touch or smell infectious substances.