ship of war. The engine, as described, is
Newcomen's.[313]

In 1855, John Sheepshanks,[314] so well known as a friend of Art and a
public donor, reprinted this tract, in fac-simile, from his own copy;
twenty-seven copies of the original 12mo size, and twelve on old paper,
small 4to. I have an original copy, wanting the plate, and with "Price
sixpence" carefully erased, to the honor of the book.[315]

{148}

It is not known whether Hulls actually constructed a boat.[316] In all
probability his tract suggested to Symington, as Symington[317] did to
Fulton.)

THE NEWTONIANS ATTACKED.

Le vrai systeme de physique generale de M. Isaac Newton expose et
analyse en parallele avec celui de Descartes. By Louis Castel[318]
[Jesuit and F.R.S.] Paris, 1743, 4to.

This is an elaborate correction of Newton's followers, and of Newton
himself, who it seems did not give his own views with perfect fidelity.
Father Castel, for instance, assures us that Newton placed the sun _at
rest_ in the center of the system. Newton left the sun to arrange that
matter with the planets and the rest of the universe. In this volume of 500
pages there is right and wrong, both clever.

A dissertation on the AEther of Sir Isaac Newton. By Bryan
Robinson,[319] M.D. Dublin, 1743, 8vo.[320]

{149}

A mathematical work professing to prove that the assumed ether causes
gravitation.

MATHEMATICAL THEOLOGY.

Mathematical principles of theology, or the existence of God
geometrically demonstrated. By Richard Jack, teacher of Mathematics.
London, 1747, 8vo.[321]

Propositions arranged after the manner of Euclid, with beings represented
by circles and squares. But these circles and squares are logical symbols,
not geometrical ones. I brought this book forward to the Royal Commission
on the British Museum as an instance of the absurdity of attempting a
_classed_ catalogue from the _titles_ of books. The title of this book
sends it either to theology or geometry: when, in fact, it is a logical
vagary. Some of the houses which Jack built were destroyed by the fortune
of war in 1745, at Edinburgh: who will say the rebels did no good whatever?
I suspect that Jack copied the ideas of J.B. Morinus, "Quod Deus sit,"
Paris, 1636,[322] 4to, containing an attempt of the same kind, but not
stultified with diagrams.

TWO MODEL INDORSEMENTS.

Dissertation, decouverte, et demonstrations de la quadrature
mathe