John Fry Heather

A treatise of mathematical instruments ... in which their construction and the methods of testing, adjusting and using them are concisely explained

Mathematical instruments

A Treatise on the Strength of Timber, Cast and Malleable Iron, and Other Materials

Mathematical Instruments : Their Construction, Adjustment, Testing and Use

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Treatise on Mathematical Instruments : Including Most of the Instruments Employed in Drawing, for Assisting the Vision, in Surveying and Levelling, in Practical Astronomy, and for Measuring the Angles of Crystals

Treatise on Mathematical Instruments, Including Most of the Instruments Employed in Drawing, for Assisting the Vision, in Surveying and Levelling, I