own
mind is a demonstrative truth, which I presume it right to make known,
though perhaps at the hazard of unpleasant if not uncourteous remarks."

I have added punctuation: the handwriting and spelling {11} are those of an
educated person; the word _irreptitious_ is indubitable. The whole is a
natural curiosity.

The quadrature and exact area of the circle demonstrated. By Wm.
Peters. 8vo. _n. d._ (circa 1848).[29]

Suggestions as to the necessity for a revolution in philosophy; and
prospectus for the establishment of a new quarterly, to be called the
_Physical Philosopher and Heterodox Review_. By Q. E. D. 8vo. 1848.

These works are by one author, who also published, as appears by
advertisement,

"Newton rescued from the precipitancy of his followers through a century
and a half,"[30] and "Dangers along a coast by correcting (as it is called)
a ship's reckoning by bearings of the land at night fall, or in a fog,
nearly out of print. Subscriptions are requested for a new edition."

The area of a circle is made four-fifths of the circumscribed square:
proved on an assumption which it is purposed to explain in a longer
essay.[31] The author, as Q. E. D., was in controversy with the _Athenaeum_
journal, and criticised a correspondent, D., who wrote against a certain
class of discoverers. He believed the common theories of hydrostatics to be
wrong, and one of his questions was:

"Have you ever taken into account anent gravity and gravitation the fact
that a five grain cube of cork will of itself half sink in the water,
whilst it will take 20 grains of brass, which will sink of itself, to pull
under the other half? Fit this if you can, friend D., to your notions of
gravity and specific gravity, as applied to the construction of a universal
law of gravitation."

This the _Athenaeum_ published--but without some Italics, for which the
editor was sharply reproved, as a sufficient {12} specimen of the _quod
erat_ D. _monstrandum_: on which the author remarks--"D,--Wherefore the e
caret? is it D apostrophe? D', D'M, D'Mo, D'Monstrandum; we cannot find the
_wit_ of it." This I conjecture to contain an illusion to the name of the
supposed author; but whether De Mocritus, De Mosthenes, or De Moivre was
intended, I am not willing to decide.

The Scriptural Calendar and Chronological Reformer, for the statute
year 1849. Including a review of recent publications on the Sabbath
question