gidas vexent fossa metalla manus.
Circus quadrandus: nam--caetera quid moror?--omnes
Poenarum facies hic labor unus habet."[273]

{155}

I had written as far as _damnatum_ when in came the letter of Nauticus as a
printed slip, with a request that I would consider the slip as a 'revised
copy.' Not a word of alteration in the part I have quoted! And in the
evening came a letter desiring that I would alter a gross error; but not
the one above: this is revising without revision! If there were cyclometers
enough of this stamp, they would, as cultivation progresses--and really,
with John Stuart Mill in for Westminster, it seems on the move, even
though, as I learn while correcting the proof, Gladstone be out from
Oxford; for Oxford is no worse than in 1829, while Westminster is far above
what she ever has been: election time excuses even such a parenthesis as
this--be engaged to amuse those who can afford it with paralogism at their
meals, after the manner of the other jokers who wore the caps and bells.
The rich would then order their dinners with _panem et Circenses_,--up with
the victuals and the circle-games--as the poor did in the days of old.

Mr. Smith is determined that half a column shall not do. Not a day without
something from him: letter, printed proof, pamphlet. In what is the last at
this moment of writing he tells me that part of the title of a work of his
will be "Professor De Morgan in the pillory without hope of escape." And
where will he be himself? This I detected by an effort of reasoning which I
never could have made except by following in his steps. In all matters
connected with [pi] the letters l and g are closely related: this appears
in the well-known formula for the time of oscillation [pi] [sqrt](l : g).
Hence g may be written for l, but only once: do it twice, and you require
the time to be [pi] [sqrt](l^2 : g^2). This may be reinforced by observing
that if as a datum, or if you dislike that word, by hypothesis, the first l
be a g, it is absurd that it should be an l. Write g for the first l, and
we have _un fait accompli_. I shall be in pillory; and overhead, in a
cloud, will sit Mr. James Smith on one stick laid across two others, under
a nimbus of 3-1/8 diameters to {156} the circumference--in [pi]-glory. Oh
for a drawing of this scene! Mr. De Morgan presents his compliments to Mr.
James Smith, and requests the honor of an exchange of photographs.

_July 26._--Another printed letter.--Mr.