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T O
Mr. J. J AME S F E R B E R,
M EM B ER OF T H E M IN E R A LO G IC A L C O L L E G E
O F
S W E D E N,
F E L L O W O F S E V E R A L S O C I E T I E S , &e.
O f the County o f T r a u .
A T our laft parting, when you undertook your journey
through the mountains o f Italy, for the purpofe o f thofe
obfervations which have fince gained you fo much honour, and
done fo great fervice to the learned naturalifts o f the north, then
hot Well acquainted with ancient volcanos, I promifed to communicate
to you a part of my obfervations on Dalmatia, whither
I was:.alfo preparing to fet out. You required a ratification o f
my promife in writing, when you favoured me with your friendly
letters in that diftant province ; and now, fince I am deprived
o f the honour and happinefs o f your company, in vifiting this
country, where your infatiable defim of feeing new objedts relative
to natural hiftory, cannot on that account be gratified,
I will readily proceed to the performance o f my promife.
Y O f