1. Leybourn,Will(iam).

Mathematical Institutions. In 3 parts.

1: Clavis The Key.

2: Janua The Gate.

3: Ancilla, the Hand-Maid, to

the Mathematical Sciences. London, 1704. (10),366p. With 25

folding tables. 16,5x22cm. Contemporary calf. Fine copy.        \135,000

Mathematical Tables, contrived after a most comprehensive methods:

With their construction and use by Mr.Briggs, Dr.Wallis, Mr.Halley,

Mr.Sharp. London, Printed for Thomas Page. 1726. (6), 64 plus

1 folding table, 1 eratta, ca 500 pages of table, 39, 1 advertisement

page. 13x22cm. Rebound. 3/4 morocco, t.e.g. Fine copy.         \54,000

3. Simpson, Thomas.

Select Excercises for Young Proficients in the Mathematics.

First edition. London, J.Nourse. 1752. vi,330p. 13x20cm.

Contemporary calf. Fine copy.                                     \96,000

4. Hutton, Charles.

Tracts on Mathematical and Philosophical Subjects;

comprising, among numerous important articles, the Theory of Bridges, with several plans of recent improvement. Also, the Results of Numerous

Experiments on the Force of Gun Powder, with Applications to the

Modern Practice of Artillery. 3 vols. London, 1812. With a portrait

of Charles Hutton. x, 485p; 384p. 6 plates; 384p. 4 plates.