CALCULATING BOY.
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Among the many boys employed for
the different purposes of calculating on
the Ordnance survey of Ireland these is at
present one named Alexander Gwin, only
eigi; years old; and native of Derry,
whose abilities al his early age are truly
surprising. lie has got by ro,e the frac-
lonal logarthms from | to a 1000, which
he will repeat in regular rotation, or 9TH
erwlse, as the interrogation may put the
question. 1t is certainly astonishing to
think so tender mind can retain with
such tenacity and correctness seven fig
ures OF an answer according to their diff
ferent variations) for 1000 numbers. His
rapidity and correctness in the various
calculations of trigometrical distance, tri-
angles, &c. are amazing, beyo yond any thing
we have ever witnessed. He can in less
than one minute make return in acres,
roods, percEes, sc. of any quantity Of
land, by giving him the surveyors chain
ed distances, while the greatest arlhmet-
clan, with all his knowledge will certain
Iy take nearly an hour to do the same,
and not be certain of truth IN the end.


Lirerpool ,Albi0n