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1780
15.
If you were to agree with C possibly you might
persuade them to let <add> send you go and take a peep
at the Venetian Galleys: when you were so far on
your way, you might stretch on as far as Naples,
& see whether you liked that place better.
16. Mittenda to S.B.
I shall send you a copy of Bergman's
in Latin price 7d 8vo and I believe a little tract
of his on the sue of the blow-pipe. I think
I may be able to send you a little
acid of sugar discovered by him. Anderson
will get me Schiller's book on first light from Saunders the lecturer & is just coming.
17
I forget whether I mentioned in my last
Fordyce the Bankers Manufactory at
Shields for making Alkali (Barilla)
from Common Salt. I believe he makes
use of clay to diminish the attraction between
the acid and the alk. upon application
of that, & so drive off the acid. Anderson has
some of the residuum that is left after driving
off the acid. I shall probably send you some.
18. Tourmaline Stones
The summer before last a mine of Tourmalineslb/> was discovered in the mountains of Tyrol
(Pilak's country & Fontana's ) by Muller Counsellor
of the board of Mines & Mint-works
in Transylvania. Swede has just imported an
account of this part translated into French
from Muller's German by one De Launay: of
Bruxelles & presented at Brussels in 1779. pp.
35 4to including the translators' notes. The Tourmalin
you remember properly is a kind
of inferior precious stone which becomes electrical
by being heated, as glass goes by being
rubbed. By applying thin a quantity of "moving
"heat" you precipitate a quantity of the electric
fluid (is that the case?) (if so the electricity
should be negative. Qu) or dispose the stain
to attract a certain quantity of that fluid from
the atmosphere. Hitherto Tourmalins have not
been known to come any where but from
the Dutch Island of Ceylon in the W E. Indies.
Stones which have the electrical property of the
Tourmalin but do not agree with it in some other
properties
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Identifier: | JB/539/123/001"JB/" can not be assigned to a declared number type with value 539. |
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1780-??-?? |
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539 |
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123 |
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001 |
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Correspondence |
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Jeremy Bentham |
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