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74 SWEDENBORG’S TRAVELS AND DIARIES. [Doc. 205.
Copernican and Ptolemaic system and other things. I also
saw them at dinner; 600 receive their meals there every day.
I spoke with Prof. Ursinus, and had a scientific discussion
with him.
Fred. Hoffmann is still alive. Thomasius I saw, and
also Rudiger, who has written a treatise on chemistry.
I saw the salt-boiling: there are four wells from thirty-six
to forty ells deep. Seventy-six pans belong to private persons,
where every four hours two baskets, or two hundred-weight of
salt are obtained. In the establishments belonging to the king
there are still more ; they are in two buildings, and are con
structed differently, viz. there are one or two pans above,
where the water is heated by the same fire that boils it in
another pan ; this is done in the lower pan ; the boiling is
done with coal. The following is the structure of the hearth :
kab is a passage or pipe
be
(canalis) which can
drawn out; in c is a grate,
so that the draught can
pass in through the passage
a b and blow into c ; the bottom of the pan runs in ob
liquely from all sides, as c d, ce, c g, cf. The flame or the
heat goes up then from h to i klm, where it heats the
water in one or two pans.
9
d
a
B
[For an account of the remaining part of the journey see
Document 204, Vol. II, p. 6.]
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