ng
that the first side is entirely an advertisement of Joseph Gillott's[589]
steel pens, with engraving of his {316} premises, and notice of novel
application of his unrivalled machinery. The second side begins with "the
circle rectified" by W. E. Walker,[590] who finds [pi] =
3.141594789624155.... This is an off-shoot from an accurate geometrical
rectification, on which is to be presumed Mr. Gillott's new machinery is
founded. I have no doubt that Mr. Walker's error, which is only in the
sixth place of decimals, will not hurt the pens, unless it be by the
slightest possible increase of the tendency to open at the points. This
arises from Mr. Walker having rectified above proof by .000002136034362....
Lastly, I, even I myself, who have long felt that I was a quadrature below
par, have solved the problem by means which, in the present state of the
law of libel, I dare not divulge. But the result is permitted; and it goes
far to explain all the discordances. The ratio of the circumference to the
diameter is not always the same! Not that it varies with the radius; the
geometers are right enough on that point: but it varies with the time, in a
manner depending upon the difference of the true longitudes of the Sun and
Moon. A friend of mine--at least until he misbehaved--insisted on the mean
right ascensions: but I served him as Abraham served his guest in
Franklin's parable. The true formula is, A and a being the Sun's and Moon's
longitudes,
[pi] = 3-13/80 + 3/80 cos(A - a).
Mr. James Smith obtained his quadrature at full moon; the Archpriest of St.
Vitus and some others at new moon. Until I can venture to publish the
demonstration, I recommend the reader to do as I do, which is to adopt
3.14159..., and to think of the matter only at the two points of the lunar
month at which it is correct. The _Nautical Almanac_ will no doubt give
these points in a short time: I am in correspondence with the Admiralty,
with nothing {317} to get over except what I must call a perverse notion on
the part of the Superintendent of the _Almanac_, who suspects one
correction depending on the Moon's latitude; and the Astronomer Royal leans
towards another depending on the date of the Queen's accession. I have no
patience with these men: what can the Moon's node of the Queen's reign
possibly have to do with the ratio in question? But this is the way with
all the regular men of science; Newton is to them etc. etc. etc. etc.
The following m
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