1 After eight days ujion calling on them, I found a young man of
2 about twenty years of age, in agony, in consequence of con¬
3 fluent small-pox, which eruption had taken place on the
4 evening of the vaccination. He was the only person in the house
5 on whom the vaccination had failed, on account of the man
6 Having carried on his shoulders a dead body that, was infected
7 with the natural small-pox; thus the I 3 mph f'uilcd, by ti c counter-
8 agency of the contagion. The rest of the family enjoyed excellent
9 health, and were saved through the medium of vaccination.
10 There is an opinion prevalent, that vaccination will only keep
11 oil the sinali-pox for a period of twenty years. I was (if 1 am not
12 mistaken) vaccinated in my native country, in the year 1,800. with
13 such an excellent lymph (not crust), that i treated a great many
14 cases of small-pox, such as lately occurred in the years 18-18 arid
15 1SM), at Lahore, without being affected by the disease myself,
16 and that without having been a second time vaccinated. Never¬
17 theless, if the second or third vaccination is of no use, it dyes no
18 injury to the constitution. In one year I got from English phy¬
19 sicians, lymph of quite different qualities, some from Umb.da,
20 and some from Delhi; the former was of a good'quality, hut the
21 hitter was of a very bad one, as the pustules sprang rapidly
22 «P mid vanished in a very short time; neither was the areola of
23 I lietn red enough, which accounted for many of those whom 1
24 vaccinated catching the small-pox. I therefore discontinued to
25 vaccinate with the matter from Delhi, after I had received some
26 of a better quality from Umbala.
27 \t Tripoli, I met with the then nctv Governor Barber, who
28 although of very low birth, had managed to got possession of
29 the fortress, and afterwards of the town itself, by fraud and
30 cunning. He was a short-necked man, thickset, inclined to
31 apoplexy (1 habitus npopleeticus), and, in consequence of his
32 sedentary life, was troubled with hemorrhoids and obstructions,
33 lie consulted me, and when I ordered him to apply a clyster, he
34 measured me wildly with his eyes, ns if 1 had ordered him some
35 dangerous remedy; I repented having done so. I remembered
36 aftei Wards, that the Arabian physicians, although aware of the