OF DR. J. R. T. VOGEL. 17 
the Soudan, down the river, to convey the sick to Fernando ; 
Po. Ithink we shall be back here from the Tschadda in 
from four to six weeks; and since the rainy season will then 
be over, and I hope the alluvium on the shore so broad as to 
enable us to dwell there with comfort, I trust to be in 
fixed quarters and able to make wider excursions. Since 
being unwell a few days at Iddah, I have felt healthy and 
strong. "The climate is, however, very injurious to an 
European constitution ; and Sierra Leone also is considered 
unhealthy : I have, however, found myself quite well after 
strong exercise. I ascended Mount Patteh, which is about 
1200 feet high, about six o'clock in the morning, without 
much fatigue : I was perfectly well; I botanized, returned at 
two, took my luncheon and rested. But the whole afternoon 
I found myself so extremely exhausted and incapable of doing 
the least thing, as I never was before: with this consolation, 
however, that I did not experience the slightest feeling of 
illness. Every one of us, who is not sick, is plagued with 
itching on the skin, and eruptions: this affliction, together 
with the mosquitos, which, however, at present have not 
been numerous, do not let us sleep at night. In short, it is 
a wretched existence for a European.” 
The unhappy fate of the Expedition is too well known. 
Vogel writes on this subject from Clarence Cove, in the island 
of Fernando Po, on the 22nd of October ; * We were desirous 
of proceeding farther, to begin a real voyage of discovery; 
when the tropical fever, which we had long feared, but at 
` last considered as left behind, broke out with such a degree 
of virulence, that in a short time almost all the Europeans 
were seized, and most of them suffered severely. On the 
same evening on which I wrote my last letter (18th of Sep- 
tember), I fell ill of the fever, which assumed a serious 
aspect. The sea air being considered the best remedy against 
the malady, we went all together down the river to this place. 
First, the Soudan with the sick ; then our ship, the Wilber- 
force; and lastly, the Albert, after it had proceeded up the 
Niger for some days, was finally compelled to return, and to 
c 
