_Mackey's "Theory of the Earth."_--I have a small pamphlet entitled,
"A New Theory of the Earth and of Planetary Motion; in which it is
demonstrated that the Sun is Vicegerent of his own System. By Sampson
Arnold Mackey, author of _Mythological Astronomy_ and _Urania's Key to
the Revelations, &c._ Norwich, printed for the Author."
There is no date on the title-page, but a notice on the second page
indicates 1825. The book is extraordinary, and shows great astronomical and
philological attainments, with some startling facts in geology, and bold
theories as to the formation of the earth. I have endeavoured to procure
the other two works of which Mr. Mackey is said to be the author, and also
some account of him, but without success. I can hardly suppose that a
writer of so much ability and learning can be unknown, and shall feel much
obliged by any information as to him or his writings.