here was so much of it: a good collection would be very useful. The work
of 1728, attributed to Newton, is likely enough to be one of the class.

{146}

Demonstration de l'immobilitez de la Terre.... Par M. de la
Jonchere,[308] Ingenieur Francais. Londres, 1728, 8vo.

A synopsis which is of a line of argument belonging to the beginning of the
preceding century.

TWO FORGOTTEN CIRCLE SQUARERS.

The Circle squared; together with the Ellipsis and several reflections
on it. The finding two geometrical mean proportionals, or doubling the
cube geometrically. By Richard Locke[309].... London, no date, probably
about 1730, 8vo.

According to Mr. Locke, the circumference is three diameters, three-fourths
the difference of the diameter and the side of the inscribed equilateral
triangle, and three-fourths the difference between seven-eighths of the
diameter and the side of the same triangle. This gives, he says, 3.18897.
There is an addition to this tract, being an appendix to a book on the
longitude.

The Circle squar'd. By Thos. Baxter, Crathorn, Cleaveland, Yorkshire.
London, 1732, 8vo.

Here [pi] = 3.0625. No proof is offered.[310]

The longitude discovered by the Eclipses, Occultations, and
Conjunctions of Jupiter's planets. By William Whiston. London, 1738.

This tract has, in some copies, the celebrated preface containing the
account of Newton's appearance before the Parliamentary Committee on the
longitude question, in 1714 {147} (Brewster, ii. 257-266). This "historical
preface," is an insertion and is dated April 28, 1741, with four additional
pages dated August 10, 1741. The short "preface" is by the publisher, John
Whiston,[311] the author's son.

THE STEAMSHIP SUGGESTED.

A description and draught of a new-invented machine for carrying
vessels or ships out of, or into any harbour, port, or river, against
wind and tide, or in a calm. For which, His Majesty has granted letters
patent, for the sole benefit of the author, for the space of fourteen
years. By Jonathan Hulls.[312] London: printed for the author, 1737.
Price sixpence (folding plate and pp. 48, beginning from title).

(I ought to have entered this tract in its place. It is so rare that its
existence was once doubted. It is the earliest description of steam-power
applied to navigation. The plate shows a barge, with smoking funnel, and
paddles at the stem, towing a