by **John Robertson**, with modern notes by **David Manthey**

ISBN 1-931468-11-7 · Copyright © 2002 by David Manthey ·
6x9", 284 pages.

- The Table of Contents
- Excerpts from the book, in plain text, a GIF image, and a PDF file. Also included is an image of one of the twelve plates of figures from the book.
- A closer look at the cover, with some details about the mathematical instruments on the front and back.
- How to order a copy, direct from the publisher, from an online bookstore, or from your local bookstore.
- About the publisher.
- Contact the publisher or the author of the notes.

*A Treatise of Mathematical Instruments* contains a complete
description of a range of tools that are useful in mathematics, surveying,
architecture, navigation, drafting, gunnery, physics, and illustration. It
covers the sector (a form of calculator that predates the slide rule), the
gunner's calipers, the proportional compasses, and a variety of lesser
instruments.

Examples show how to use all of the instruments, with extensive details on architectural drawing, plane geoemtry, spherical trigonometry, unit conversion, surveying, perspective drawing, and ship's guns (cannons and mortars). 12 plates of figures illustrate and clarify the text.

Here is how John Robertson introduces his book:

It is needless to enumerate the many purposes to which *mathematical
instruments* serve; their use seems quite necessary to persons employed in
most of the active stations of life.

The *Architect*, whether *civil*, *military*, or
*naval*, never offers to effect any undertaking, before he has first
made use of his *rule* and *compasses*, and fixed upon a scheme or
drawing; which unavoidably requires those *instruments*, and others
equally necessary.

The *Engineer*, cannot well attempt to put in execution and design,
whether for *defence*, *offence*, *ornament*, *pleasure*,
&c. without first laying before his view, the plan of the whole; which is not
to be conveniently performed, but by *rulers*, *compasses*, &c.

There are indeed, very few good *Artificers*, who have not, in some
measure, occasion for the use of one or more *mathematical instruments*;
and whenever there is required, an accurate drawing or representation of a
thing to be executed; that collection of instruments, usually put into
*portable cases*, is then absolutely necessary: And of these, the most
common ones, or others applicable to like service, must have been in use,
ever since mankind have had occasion to provide for the necessary
conveniences of life: But the *parallel ruler*, the *proportional
compasses*, and the *sector*, are not of any great antiquity.

Anyone who has ever drafted a plan or drawing by hand or recalls having used a slide rule will be interested in this book. Those who has only used electronic devices will learn something new. Additionally, a wealth of historical details are revealed through the extensive figures and the text.

Modern notes include a biography of the author John Robertson, an explanation of some of the notation used in the book, and a brief commentary and history on mathematical methods, surveying, navigation, and architecture.

A Treatise of Mathematical Instruments · by John Robertson ·
with Notes by David Manthey

ISBN 1-931468-11-7 · Copyright ©
2002 by David Manthey · 6x9", 284 pages.

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