om
his constantly having a pipe in his mouth.

Case X.--Two of the principal Jews of the town giving themselves
up, and having no hope, were willing to employ the remainder of
their lives in affording assistance to the dying and the dead, by
washing the bodies and interring them; this business they performed
during thirty or forty days, during all which time they were not
attacked: when the plague had nearly subsided, and they began again
to cherish hopes of surviving the calamity, they were both smitten,
but after a few days' illness recovered, and are now living.

From this last case, as well as from many others similar, but too
numerous here to recapitulate, it appears that the human
constitution requires a certain miasma, to prepare it to receive
the pestilential infection.

_General Observation._--When the carbuncles or buboes appeared to
186 have a blackish rim round their base, the case of that patient was
desperate, and invariably fatal. Sometimes the whole body was
covered with black spots like partridge-shot; such patients always
fell victims to the disorder, and those who felt the blow
internally, showing no external disfiguration, seldom survived more
than a few hours.

The plague appears to visit this country about once in every twenty
years[139]: the last visitation was in 1799 and 1800, being more
fatal than any ever before known.

[Footnote 139: This opinion is confirmed by the plague, being
now (1820) in Marocco just twenty years since the last plague.
65,000 persons have been lately carried off by this disease in
the cities of Old and New Fas.]

* * * * *

_Observations respecting the Plague that prevailed last Year in
West Barbary, and which was imported from Egypt; communicated by
the Author to the Editor of the Quarterly Journal of Literature,
Science, and the Arts, edited at the Royal Institution of Great
Britain, No, 15, published in October, 1819._

His Majesty's ship, which was lying in the port of Alexandria, when
Colonel Fitzclarence passed through Egypt, from India, on his way
to England, convoyed to Tangier a vessel which had on board two of
the sons of Muley Soliman, emperor of Marocco; on their arrival at
Tangier, the princes immediately landed and proceede